Answers
To determine the minimum number of people the pollster should survey in order to have a margin of error of 10 minutes at 95% confidence, we can use the following formula:
n = (Z^2 * p * (1 - p)) / (E^2)
where:
n = the minimum number of people the pollster should survey
Z = the z-score corresponding to the desired level of confidence (for a 95% confidence level, the z-score is approximately 1.96)
p = the estimated proportion of the population that holds a particular opinion or characteristic (in this case, we will assume that p = 0.5, since we are given that sigma is equal to 30 and we want to find the minimum number of people needed to achieve a margin of error of 10 minutes)
E = the desired margin of error (in this case, E = 10 minutes)
Substituting these values into the formula, we get:
n = (1.96^2 * 0.5 * (1 - 0.5)) / (10^2)
Simplifying this expression, we get:
n = (3.8416 * 0.25) / 100
= 0.09604 / 100
= 0.0009604
Since n must be a whole number, we need to round up to the nearest whole number. In this case, the minimum number of people the pollster should survey is 1.
Therefore, the minimum number of people the pollster should survey in order to have a margin of error of 10 minutes at 95% confidence is 1.
Related Questions
If |2x - 2| > 2, what is the range of x?
a. x -4 b. x≤0 or x ≥2 c. x≤2 or x ≥-2 d. x 2 e. x 2
Answers
Answer:
B is the answer
X < = 0 or x > =2
Explanation:
2x -2 >= 2 or 2x-2 < = - 2
2x > =4 Or 2x < = 0
X > =2. Or x < = 0
Draw a box plot with the following data 12,18,20,23,25,28,32,36,37,40,41
Answers
A box plot with the data presented should visually display the range of the data and the most relevant values.
What is a box plot and how to draw one?This is a type of graph that is used to display mathematical data. The basic steps to create a box plot are:
Organize the data using ascending order.Calculate important values such as the minimum and maximum values, the median, the quartiles, and the outliers.Draw the number line.Draw a box from Q1 to Q3.Add the median and other important values.Learn more about box plots in https://brainly.com/question/9827993
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One of the functions of sociology of education is the development of new social patterns (see p5 in SoE). Briefly discuss how this aim could be taught in the classroom. (3)
Answers
Teaching the aim of developing new social patterns within the context of the sociology of education requires a comprehensive and interactive approach in the classroom.
Some strategies that could be used to effectively teach this aim:
1)Introduce case studies: Presenting real-life case studies that demonstrate social patterns and their consequences can help students understand the importance of developing new social patterns.
By analyzing these cases, students can identify existing social patterns, evaluate their impacts, and brainstorm potential alternatives.
2)Encourage critical thinking: Foster critical thinking skills by engaging students in discussions and debates about current social patterns and their implications.
Encourage them to question the status quo, challenge existing norms, and explore alternative social arrangements.
This can be done through open-ended questions, group activities, and analyzing conflicting viewpoints.
3)Collaborative projects: Assigning collaborative projects that require students to propose and develop new social patterns can be an effective way to engage them in active learning.
Students can work in groups to identify social issues, research potential solutions, and create action plans for implementing new social patterns.
This hands-on approach encourages creativity, teamwork, and problem-solving skills.
4)Guest speakers and field trips: Inviting guest speakers from various fields, such as sociology, education, and community organizations, can provide students with real-world insights into the development of new social patterns.
Organizing field trips to relevant community organizations or institutions can also give students the opportunity to observe and learn from initiatives that aim to create positive social change.
5)Reflective activities: Incorporate reflective activities, such as journaling, class discussions, or personal presentations, where students can express their thoughts, insights, and personal experiences related to social patterns.
Encourage them to critically reflect on their own behaviors, attitudes, and the potential impact they can have on social patterns.
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TRAINING
Question:
There are 28 women and 21 men attending Online Webinar What
is the ratio of women to the total number of people?
CHOOSE ONE:
SONY
B
Answers
Answer:
I think the answer for this question is, 4/7.
12 grams (g) of a chemical are added to a metal. The amount A, in grams, of the chemical
remaining during a reaction with a metal plate decreases by 0.5 g per second. If instead the plate
were dissolved, the amount A', in grams, of chemical remaining would decrease by half of itself
every 4 seconds. How many grams greater is A than A' after 12 seconds?
Answers
Answer: A=12
Explanation:
4.5
The amount of chemical remaining after twelve seconds in the first reaction is:
A = 12 - 0.5(12)
= 12 - (6)
= 6
In the dissolved reaction, the amount of chemical loses half of itself every four seconds. This is the same thing as dividing by 2 every four seconds.
This is an exponential decay, so the amount of chemical divides by 4 every eight seconds, and by 8 seconds every twelve seconds. The amount remaining after twelve seconds in the second reaction is:
A' = 12/8
= 3/2
= 1.5
The difference between the amounts of chemical remaining is:
6 - 1.5 = 4.5
Therefore, A is 4.5 g greater than A' after twelve seconds.
Hi school students across the nation compete in a financial compatibility challenge each year by taking in national financial compatibility challenge exam students whose score in the top 5% or recognized publicly for their achievement by the department of treasury assuming a normal distribution how many standard deviation above the mean does a student have to score to be publicly, recognized (round your answer to 2 decimal place )
Answers
Answer:
To determine how many standard deviations above the mean a student has to score to be publicly recognized, we need to calculate the z-score. The z-score measures the number of standard deviations a data point is from the mean in a normal distribution.
In this case, the top 5% of students are recognized publicly for their achievements. Since the normal distribution is symmetrical, we can find the z-score corresponding to the top 5% and determine how many standard deviations it is from the mean.
The area under the standard distribution curve for the top 5% is 0.05. To find the z-score, we can use a standard normal distribution table or a statistical calculator.
The z-score corresponding to an area of 0.05 is approximately 1.645. Therefore, a student must score approximately 1.645 standard deviations above the mean to be publicly recognized.
Rounded to two decimal places, the answer is 1.65 standard deviations above the mean.
I hope this helps! J'espère que ça aide! ich hoffe das hilft!
Please help me with this
Answers
Answer: NAH BRO EVERYONES CONFUSED WITH THAT PAGE IM A SAT STUDENT AND CANT UNDERSTAND THAT
Explanation:
Question 3
1 pts
PART A: As it is used in paragraph 5, the word "severity" most closely
means:
O Dangerousness
O Cruelty
O Difficulty
O Strictness
Answers
Determina el valor numérico de las siguientes expresiones algebraicas sabiendo que x = -2 y= 3 z =4
Answers
The numerical value of the first expression is one, and the numerical value for the second expression is measured at -18.
How to solveSubstituting the provided x, y, and z parameters into their designated expressions allows us to calculate their numerical values.
The numeric result yielded when performing such calculations on 2x + y^2 -z is 1, with a calculation procedure of: 2(-2) + 3^2 - 4 = -4 + 9 - 4 = 1.
In addition, xyz + 2y equals -18, calculated by (-2)(3)(4) + 2(3) = -24 + 6 = -18.
Therefore, the numerical value of the first expression is one, and the numerical value for the second expression is measured at -18.
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The question in English is
Determine the numerical value of the following algebraic expressions knowing that x = -2 y= 3 z =4
12
8
x + 2
х=?
Find x
Answers
Cells are made mostly of water true or false
Answers
true sry I was thinking of my answer too
how do fractions work?
Answers
Answer:
Ya conocemos que las fracciones sirven para escribir divisiones, y normalmente no hace falta calcular con decimales el resultado de esa división. Seguramente también sabrás que cualquier número entero puede escribirse como una fracción: basta con poner "1" en el denominador.
Una fracción es un número, que se obtiene de dividir un entero en partes iguales. Por ejemplo cuando decimos una cuarta parte de la torta, estamos dividiendo la torta en cuatro partes y consideramos una de ellas.
Una fracción o número fraccionario es en matemáticas la forma de expresar una cantidad dividida. ... Estas se componen de dos números: por un lado el numerador, y por otro el denominador. El numerador corresponde al número que nos indica cuantas partes tomamos.
Explanation:
Espero que sirva
How will the electroscope's tape move if each piece has a negative charge?
Answers
Include copies of any certificates that you have that pertain to early childhood education.
Answers
Early childhood education (ECE) refers to the formal and informal education and care provided to children from birth up to the age of eight.
What is childhood education?This is a critical period of a child's development, during which they acquire foundational skills, knowledge, and values that shape their future development and learning.
ECE programs can take many forms, including daycare centers, preschools, and nursery schools. ECE programs are designed to support the development of the whole child, including their cognitive, social, emotional, and physical development. ECE teachers and caregivers create nurturing environments that promote exploration, play, and learning through developmentally appropriate activities and interactions.
Therefore, Early childhood education is important because it helps children develop the skills and knowledge they need to succeed in school and life.
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See full question below
What is childhood education. Include copies of any certificates that you have that pertain to early childhood education.
There are five (5) urns and they are numbered 1-5, each urn contains 10 balls. Uni has i defective and 10-i non-defective balls (i = 1, 5). An urn is chosen at random and then a ball is drawn from the chosen urn, the experiment does not know which of the urns was selected (i) What is the probability that a defective ball is drawn (ii) If the ball drawn turns out to be defective, what is the probability that it comes from urn i=5
Answers
Answer:
Explanation:
(i) The probability that a defective ball is drawn is equal to the total number of defective balls divided by the total number of balls. In this case, there are a total of 5 defective balls (one in each urn) and a total of 50 balls (10 in each urn), so the probability of drawing a defective ball is 5/50 = 1/10.
(ii) If the ball drawn turns out to be defective, the probability that it comes from urn i=5 is equal to the number of defective balls in urn 5 divided by the total number of defective balls. In this case, there is only 1 defective ball in urn 5 and a total of 5 defective balls, so the probability that a defective ball drawn comes from urn 5 is 1/5.
I hope this helps! Let me know if you have any other questions or need further assistance.
1. Do you have your own method of conflict resolution? What could you call it? What are its questions or steps?
2. What concepts do all of the conflict resolution methods seem to share? Why might this be so?
3. Is there more than one way to resolve a conflict successfully? Why or why not?
4. Can some conflicts be productive? For example, if two colleagues at work have different ideas about how to approach a certain project, that is a conflict. However, might it be possible to create synergy from such a conflict?
Answers
- Identifying the problem or issue at hand
- Active listening to understand the other person's perspective
- Identifying the underlying interests and needs of all parties involved
- Brainstorming and evaluating potential solutions
- Choosing a mutually agreeable solution
- Implementing the chosen solution and following up to ensure that it is working effectively
2. All conflict resolution methods share the common concept of trying to find a mutually acceptable solution that addresses the underlying concerns and interests of all parties involved. This is because conflicts arise when there are differences in interests, values, or perspectives, and finding common ground can help to resolve the conflict and prevent it from escalating further.
3. Yes, there can be more than one way to resolve a conflict successfully. Different conflicts may require different approaches, and what works in one situation may not work in another. Additionally, what may be successful in resolving a conflict for one person or group may not be successful for another. Therefore, it is important to be flexible and adaptable in conflict resolution and consider multiple approaches to find the one that works best.
4. Yes, some conflicts can be productive. When conflicts arise, they can lead to new ideas and perspectives that may not have been considered otherwise. By engaging in constructive dialogue and seeking to understand the other person's perspective, it is possible to create a more innovative and effective solution than would have been possible without the conflict. However, it is important to ensure that conflicts are managed effectively to prevent them from becoming destructive or causing harm to relationships or individuals involved.
Question 3 of 10
What is a step you can take toward committing to a career path?
OA. Take some career assessments.
OB. Check for positions in your area.
OC. Find out how popular it is.
O D. Keep your options open.
Answers
Answer:
The correct answer is A; Take some career assessments.
QUESTION:
in a grocery store, there are 48 new boxes of apples and 36 new boxes of bananas. What is the ratio of boxes of apples to boxes of bananas? (Select all that apply). *
10 points
ANSWE CHOICES:
36:48
48:36
12:3
4:3
24:18
Answers
Answer: 4:3
Explanation:
Ratios should be expressed in their simplest forms for easy comparison. In the question there are 48 boxes of apples to 36 boxes of bananas. The ratio therefore is;
48:36.
Takin them to their simplest forms will involve dividing them by their highest common factor which in this case is 12.
48/12 = 4
36/12 = 3
Ratio is therefore;
4:3
When Sam’s science teacher assigns the class some online reading assignments about marine biology, Sam races home after school. He is excited to start reading—he wants to learn as much as he can about the subject because he is planning a career in marine biology. He studies the reading material closely, memorizing the difficult words and taking many notes. When it comes time for the test, he gets a high grade, improving his overall class grade as a result.
What is the main reason Sam is so actively engaged with the text he is reading?
He wants to do well on the upcoming test.
He needs to increase his understanding of difficult vocabulary.
He wants to improve his overall class grade.
He is highly interested in the subject matter.
Answers
Answer:
D) He is highly interested in the subject matter.
Explanation:
The author of passage 1 uses the phrase that’s right in order to
Answers
The context clues show that the author of passage 1 uses the phrase that’s right in order to convey the main idea.
What are context clues?Context clues help to find the meaning of a word taking into account the words that surround the unknown word that make us infer the meaning.
Also called visual indices, these words are described or defined by other words that appear in the same sentence.
Here, the context clues show that the author of passage 1 uses the phrase that’s right in order to convey the main idea.
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Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2800 grams and a standard deviation of 700 grams Well baby is born after a suggestion. A suggestion period of 40 weeks have a mean weight of 3300 g and a standard deviation of the deviation of 445 g if a 34 week suggestion. Baby weighs 3300 g and a 41 week adjusting. Baby weighs 3000 g find a corresponding Z scores which baby weighs more relative to a digestion.
Answers
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2800 grams and a standard deviation of 700 grams Well baby is born after a suggestion the score for 40weeks baby = (x - mean) / s = (3600 - 3100) / 410 = 1.22.
What is the z rating for the 34-week gestation length toddler?The z-rating for a 34-week gestation length toddler is (2400g-2600g)/660g = -0.30g The z-rating for a forty-week gestation length toddler is (3300g-3500g)/470g = -0.42g. The forty-week gestation toddler weighs much less relative to the gestation length.
z score for 32 weeks baby = (x - man) / s * standard deviation= (3300 - 2800) / 900 = 0.5 The toddler born in week forty weighs quite extra considering the fact that its z-rating 1.22, is bigger than the z-rating of 0.56 for the toddler born in week 32 scorefor * 40 week baby = (x - mean) / s * standard deviation= (3600 - 3100) / 410 = 1.22.Read more about z score :
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Correct the 3 grammatical errors (a/an/the) in the text below.
Once a year, the college goes on a expedition trip to do charity work abroad. Last year’s trip was to help set up the community garden in South America. This year’s trip will be to Kenya. The trips are expensive, but students can save an lot of money by working together and doing fundraising events
Answers
Answer:
Once a year, a college goes on an expedition trip to do charity work abroad. Last year’s trip was to help set up a community garden in South America. This year’s trip will be to Kenya. The trips are expensive, but students can save a lot of money by working together and doing fundraising events.
A study was conducted to estimate the mean age when people buy their first new car. The ages of purchase for 22 randomly selected people are given below. Assume the ages are approximately normally distributed. Use Excel to determine the 99% confidence interval for the mean. Round your answers to two decimal places and use increasing order.
Answers
The 99% confidence interval for the mean will be 21.45 ± 2.12.
How to calculate the confidence intervalFrom the information, the study was conducted to estimate the mean age when people buy their first new car. The ages of purchase for 22 randomly selected people.
Mean = 472 / 22 = 21.4545
Sample Standard deviation = √ ( 259.4552 / 22 -1 ) = 3.515
Critical value= 2.8314 ( From t table )
21.4545 ± t(0.01/2, 22 -1) * 3.515/√(22)
Lower Limit = 19.33
Upper Limit = 21.4545 + t(0.01/2, 22 -1) 3.515/√(22)
Upper Limit = 23.58
99% Confidence interval is ( 19.33 , 23.58 )
Where data is in the range of I7:I28
Margin of error = = 2.12
AVERAGE(I7:I28) = 21.45
21.45 ± 2.12
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Answer: (19.33, 23.57)
Explanation:
Use Excel to calculate the 99% confidence interval, where α=0.01 and n=22.
1. Open Excel and enter the given data in column A. Find the sample mean, x¯, using the AVERAGE function and the sample standard deviation, s, using the STDEV.S function. Thus, the sample mean, rounded to two decimal places, is 21.45 and the sample standard deviation, rounded to two decimal places, is 3.51.
2. Click on any empty cell, enter =CONFIDENCE.T(0.01,3.51,22), and press ENTER.
3. The margin of error, rounded to two decimal places, is 2.12. The confidence interval for the population mean has a lower limit of 21.45−2.12=19.33 and an upper limit of 21.45+2.12=23.57.
Thus, the 99% confidence interval for the mean is (19.33, 23.57).
which game is more difficult? Shogi or chess
Answers
Answer:
Shogi because I haven't played it yet..........
Answer:
Shogi is more difficult than chess.. because once player an opponent's piece they can use that piece as own..Explanation:
I hope this helps u..65 percent of consumers prefer to purchase electronics online. You randomly select consumers. Find the probability that the number of consumers who prefer to purchase electronics online is (a) exactly five, (b) more than five, and (c) at most five.
Answers
Answer:
Explanation:
To calculate the probabilities, we can use the binomial probability formula. In this case, we have a binomial distribution with the following parameters:
Probability of success (p): 65% or 0.65
Number of trials (n): The number of consumers randomly selected
Number of successes (k): The number of consumers who prefer to purchase electronics online
(a) To find the probability that exactly five consumers prefer to purchase electronics online, we can use the formula:
P(X = k) = (nCk) * p^k * (1 - p)^(n - k)
Plugging in the values, we get:
P(X = 5) = (nC5) * 0.65^5 * (1 - 0.65)^(n - 5)
(b) To find the probability of more than five consumers preferring to purchase electronics online, we need to calculate the cumulative probability from k = 6 to the maximum number of consumers randomly selected. This can be calculated as follows:
P(X > 5) = 1 - P(X <= 5)
(c) To find the probability of at most five consumers preferring to purchase electronics online, we need to calculate the cumulative probability from k = 0 to k = 5. This can be calculated as follows:
P(X <= 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)
Hahahahahahahaahahaafreepoints
Answers
Answer:
Thxs i really needed it
Explanation:
Applying critical thinking skills is an effective way to avoid being sidetracked by irrational thoughts. Please select the best answer from the choices provided T F
Answers
Answer:
it is true
Explanation:
because i looked it up and it said true
Answer:
true
Explanation:
Bryan is having a pizza party. He has 36 slices of pizza. He has 9 plates. He puts the same number of slices on each plate. How many slices of pizza are on each plate?
Answers
This is because 9 x 4 = 36. Since there are 9 plates, 4 slices on each of the 9 plates would equal 36 slices
QUESTION 1
Consider the following argument: Either there is a massive, multi-million dollar conspiracy at work, or else the electorate
have decided that Senator Wiggins is the best candidate for the position. The electorate have decided that Senator
Wiggins is the best candidate for the position. So, there is not a massive, multi-million dollar conspiracy at work. What is
the logical form of this argument?
O a. Modus Tollens
b. Disjunctive Syllogism
c. Affirming the consequent
O d. Affirming a disjunct
e. Modus Ponens
Answers
Answer:
The logical form of this argument is b. Disjunctive Syllogism.
Explanation:
The argument presents two mutually exclusive options: either there is a massive, multi-million dollar conspiracy at work, or the electorate has decided that Senator Wiggins is the best candidate for the position. It then asserts that the electorate has decided that Senator Wiggins is the best candidate, which eliminates the second option. Therefore, the conclusion is that there is not a massive, multi-million dollar conspiracy at work, which follows from the elimination of the second option. This pattern of reasoning is known as a disjunctive syllogism.
The expenses and income of an individual
are given in table form to the right. Find the
net monthly cash flow (it could be positive
or negative). Assume salaries and wages
are after taxes. When you need to convert
between weeks and months, assume that
1 month=4 weeks.
>
HW Score: 20%, 2 of 10 points
Points: 0 of 1
Income
Part-time job: $500/month
College fund from grandparents:
$350/month
Scholarship: $6000/year
The net monthly cash flow is $ (Round to the nearest dollar as needed.)
Save
Expenses
Rent: $400/month
Groceries: $60/week
Tuition and fees: $2400 twice a
year
Incidentals: $130/week
Answers
The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.
What is meant by net cash flow?This is the term that is used to refer to the total cash inflow that a business would have minus the cash outflow that they have.
Your net cash flow would be
$3,275 - $2,900
= 375
The inflow of cash in the business is given to be 3275 while the outflow of cash is given as 2900.
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The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.
What is meant by net cash flow?This is the term that is used to refer to the total cash inflow that a business would have minus the cash outflow that they have.
Your net cash flow would be
$3,275 - $2,900
= 375
The inflow of cash in the business is given to be 3275 while the outflow of cash is given as 2900.
The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.To learn more about net cash flow refer to:
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