The significance level, also known as alpha, is the probability of rejecting the null hypothesis when it is actually true. The common significance level is 0.05, which indicates that there is a 5% probability of rejecting the null hypothesis when it is true
.What is the p-value?
The p-value is the probability of observing a difference as large as or larger than the one observed, assuming that the null hypothesis is true. It is compared to the significance level to determine if the null hypothesis should be rejected or not.
What is the interpretation of the p-value?
A p-value of less than the significance level (0.05) indicates that there is a significant difference between the means of the two groups. A p-value of greater than the significance level suggests that there is no significant difference between the means of the two groups.
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The correct answer is option 3: Kruskal-Wallis test.
The correct answer is option 3: Two-sample t-test with the difference of after and before anxiety score.
a. The appropriate statistical test to compare the differences in anxiety scores before and after intervention for male and female students would be:
Kruskal-Wallis test
The Kruskal-Wallis test is a non-parametric test used to compare the medians of three or more independent groups.
In this case, we have two independent groups (males and females), and we want to determine if there are any differences in the anxiety score changes between these groups after the intervention.
b. If you have a larger sample size, you can use the following parametric test to analyze the differences in anxiety scores before and after intervention:
Two-sample t-test with the difference of after and before anxiety scores.
The two-sample t-test is appropriate when comparing the means of two independent groups. In this case, you can calculate the difference between the after and before anxiety scores for each individual, and then perform a two-sample t-test to determine if there is a significant difference in the mean difference between males and females.
However, it's important to note that the t-test assumes normality of the data and equality of variances between the groups. If these assumptions are violated, alternative non-parametric tests, such as permutation tests or bootstrapping, may be more appropriate.
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3.9 in fration form in fration
Answer: 39/10
Step-by-step explanation:
Multiply both top and bottom by 10 for every number after the decimal point:
As we have 1 numbers after the decimal point, we multiply both numerator and denominator by 10. So,
3.9
1
= (3.9 × 10)
(1 × 10)
= 39/10
What is the first step in solving the quadratic equation -5x^2+8=133?
taking the square root of both sides of the equation
subtracting 8 from both sides of the equation
squaring both sides of the equation
adding 8 to both sides of the equation
Answer:
Step-by-step explanation:
-5x²+8=133
-5x²=133-8
-5x²=125
x²=-25 ........... dividing 125 by -5
x=√-25..........Taking square root of -25
x=±5
Hope this might help you...
The first step in solving the quadratic equation -5x²+8=133 is subtracting 8 from both sides of the equation.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is -5x²+8=133
Minus five times of x square plus eight equal to one hundred thirty three.
x is the variable in the equation.
We have to solve for x
-5x²+8=133
The first step is to isolate the variable x to do this we have to subtract 8 from both sides
-5x² = 125
Divide both sides by 5
x² = -125/5
x² =-25
Hence, first step in solving the quadratic equation -5x²+8=133 is subtracting 8 from both sides of the equation.
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Last year 858 people attended the Middleton County Fair. This year 1,635 people attended. What was the percent increase from last year to this year? (Round to the nearest percent) *
Answer:
28
Step-by-step explanation:
Answer: 389
Step-by-step explanation: because I’m heading
select all expressions below that are irrational
Answer:
Choice 3 and 5
Step-by-step explanation:
Answer: A,B,E
Step-by-step explanation:
Just trust me
A student who is at the 40th percentile of first-year gpas is also likely to be at the 40th percentile of second-year gpas. true false
False. We would anticipate the second-year GPA to be slightly higher than the 40th percentile based on the regression impact.
How does your GPA translate?
Your grade point average (GPA) is calculated by dividing the total number of credits you have earned in high school by the sum of all of your course grades. The majority of colleges and secondary schools use a 4.0 scale to report grades.Given this,
A student who has a first-year GPA in the 40th percentile
is likely to have a second-year GPA in the same range.
The scatter plot is shaped like a football. ————— (False)
If the scatter diagram is shaped like a football, then all of the data points are drawn in a circle. As a result, the data does not fit well.
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London is working two summer jobs, making $24 per hour tutoring and making $10 per hour landscaping. In a given week, she can work a maximum of 15 total hours and must earn a minimum of $220. If London worked 7 hours tutoring, determine the minimum number of whole hours landscaping that she must work to meet her requirements.
Answer:
5 hours
Step-by-step explanation:
Let x represent the number of hours London works landscaping.
We can set up the following system of equations to represent the information given in the problem:
24x + 10(15 - x) = 220
24x + 150 - 10x = 220
14x = 70
x = 5
London must work a minimum of 5 hours landscaping to meet her requirements.
Answer:
5 hours
Step-by-step explanation:
Let x represent the number of hours London works landscaping.
24x + 10(15 - x) = 220
24x + 150 - 10x = 220
14x = 70
x = 5
London must work a minimum of 5 hours of landscaping to meet her requirements.
what is the circumference and area of a circle with a radius of 4 meters
Answer:
Area = 50.27 m
Circumference = 25.13 m
Detailed Explanation:
Radius (r) = 4 m
Area of a Circle
= πr^2
= π * r^2 = π * r * r
= 3.14 * 4^2 = 3.14 * 16
=> 50.27 m
Circumference of the Circle
= 2πr
= 2 * π * r
= 2 * 3.14 * 4
=> 25.13 m
if you were to design a class to represent a fraction, what 2 instance variables would be necessary?
The two necessary instance variables for representing a fraction would be the numerator and the denominator.
What are the essential instance variables for representing a fraction?The numerator represents the top part of the fraction indicating the number of equal parts being considered. The denominator represents the bottom part of the fraction indicating the total number of equal parts the whole is divided into.
These two variables are crucial for accurately representing and performing operations on fractions such as addition, subtraction, multiplication, and division. They allow for precise manipulation and comparison of fractional values within a programming class.
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Boudica lived in ancient britain and rebelled against the occupying roman forces
Boudica was a queen of the Celtic Iceni tribe who lived in ancient Britain during the Roman occupation. In AD 60 or 61, she led a rebellion against the occupying Roman forces after her husband's death and the Roman seizure of her property and lands.
Boudica's rebellion was initially successful, with her army defeating the Roman Ninth Legion and burning the city of Colchester. However, her forces were ultimately defeated by the Roman governor, Gaius Suetonius Paulinus, in a decisive battle in which thousands of Britons were killed. Despite her defeat, Boudica remains a legendary figure in British history and a symbol of resistance against foreign oppression.
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Use 40, 37, 30, 40, 39, 41, 38, n.
1. If the mean was 43, n = ____
2. If the mean was 40, n = ____
3. If the mean was 38, n = ____
Answer:
\(40 + 37 + 30 + 40 + 39 + 41 + 38 + n = 265 + n\)
1)
\( \frac{265 + n}{8} = 43\)
\(265 + n = 344\)
\(n = 79\)
2)
\( \frac{265 + n}{8} = 40\)
\(265 + n = 320\)
\(n = 55\)
3)
\( \frac{265 + n}{8} = 38\)
\(265 + n = 304\)
\(n = 39\)
What is 93.195 written in expanded form?
Standard Form:
93.195
Expanded forms can be written like a sentence or stacked for readability as they are here.
Expanded Notation Form:
93.195 =
90
+ 3
+ 0.1
+ 0.09
+ 0.005
Expanded Factors Form:
93.195 =
9 × 10
+ 3 × 1
+ 1 × 0.1
+ 9 × 0.01
+ 5 × 0.001
Expanded Exponential Form:
93.195 =
9 × 101
+ 3 × 100
+ 1 × 10-1
+ 9 × 10-2
+ 5 × 10-3
Word Form:
93.195 =
ninety-three and one hundred ninety-five thousandths
A menu has:
5 starters
8 main dishes
4 desserts
a) A three-course meal consists of a starter, a main dish and a dessert. How many different three-course meals are possible?
b) A two-course meal consists either of a starter with a main dish, a starter with a dessert, or a main dish with a dessert. How many different two-course meals are possible?
Answer:
1 A 4 three-course meal can be possible
2 An 8 two course meal can be available
Step-by-step explanation:
This is because the number of dessert is the lowest which is and the starter and main dishes are higher in number since only 4 desert can go around only a 4 three course meal is available.
2 This is because 5+8+4= 17. Since it's a two course meal 17÷2= 8.5. Meaning 8 meals are the only whole 2 course meal available
By applying the counting principle in combinatorics, we find that there are 160 different possible three-course meals and 92 different possible two-course meals in the given menu.
Explanation:This question involves the concept of the counting principle, a fundamental principle in combinatorics. The principle states that if there are m ways to do one thing, and n ways to do another, then there are m*n ways of doing both.
In part a), a three-course meal consists of one starter, one main dish, and one dessert. To figure out the number of different meals possible, we multiply the number of options at each course: 5 starters * 8 main dishes * 4 desserts, which equals 160 different three-course meals.
In part b), a two-course meal consists of either a starter with a main dish, a starter with a dessert, or a main dish with a dessert. For each of these combinations, we multiply the number of possibilities at each course and then add the results together. Hence, (5 starters * 8 main dishes) + (5 starters * 4 desserts) + (8 main dishes * 4 desserts) equals 40 + 20 + 32, giving us 92 different two-course meals.
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Find the volume of this right triangular prism 5cm 8 cm 3 cm
Answer:
I can help, but can you label which is base, height, and length
Step-by-step explanation:
Bearing a to b is 280 what is bearing b to A
Answer:
please see photo attached for detailed analysis.
you and your mom go shopping for christmas wrapping paper and bows. you buy 3 rolls of wrapping paper and 5 bows for $32. Your mom buys 1 roll of wrapping paper and 2 bows for 11$. write a system of equations for this senerio
Answer:
Each roll costs $9 and each bow costs $1
3(9) + 5(1)= 32
1(9) + 2(1) = 11
extrapolation is the use of the regression line to estimate a mean of y-values for an x-value that is far outside the x-range of data. a. true
b. false
TRUE extrapolation is the use of the regression line to estimate a mean of y-values for an x-value that is far outside the x-range of data.
"Information available from the question"
In the question:
Extrapolation is the use of the regression line to estimate a mean of y-values for an x-value that is far outside the x-range of data.
Answer in True or False.
Now, According to the question:
Let's Know:
What is extrapolation?
A statistical technique called extrapolation aims to understand the unknown data from the known data. It uses historical data to attempt to predict future data. For instance, using the current population size and growth rate to project the size of a population in a few years.
Predicting hypothetical values outside of a specific data set is the goal of extrapolation.
Contrary to interpolation, which typically focuses on estimating past values, extrapolation is used to predict unknown future values due to its predictive nature.
Hence, TRUE extrapolation is the use of the regression line to estimate a mean of y-values for an x-value that is far outside the x-range of data.
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Am I right vote you brainiest
Answer:
false
Step-by-step explanation:
If the sum of two numbers is 10 and the product of the numbers is 15, then find the following:
(a) The difference of numbers.
(b) Sum of cube of the numbers.
Answer:
the numbers are
\( \sqrt{10} + 5 \\ - \sqrt{10} + 5\)
Step-by-step explanation:
then there difference is
square root of 10 + 5 -(- square root of 10 +5)
=
\(2 \sqrt{10} \)
and the cube of there sum is 15^3 = 15* 15* 15
= 3375
The perimeter of parallelogram ABCD is 92 cm. AD is 1 cm more than twice AB. Find the lengths of all four sides of ABCD
(1 point)
Answer:
Step-by-step explanation:
The perimeter of a parallelogram ABCD IS 92cm. AD is 1cm more than twice AB. Find the lengths of all four sides of ABCD
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Let x = |AD| (the length of the side AD).
Let y = |AB| (the length of the adjacent side AB).
Then
2x + 2y = 92 (the perimeter)
x - 2y = 1 ("AD is 1cm more than twice AB.")
Add the two equations (both sides) and get
3x = 92 + 1 ---> 3x = 93 ---> x = 93/3---> x = 31.
Then from the second equation 2y = x - 1 = 30-1 = 30.
Hence, y = 30/2 = 15.
Answer. The sides of the parallelogram are 31, 15, 31 and 15 cm long.
Find zeros of quadratic polynomial
x²+x -20
Answer:m,m,
Step-by-step explanation:
Answer:
Zeros:
x = -5x = 4Step-by-step explanation:
Given quadratic polynomial:
\(x^2+x -20\)
The zeros of a function f(x) are the x-values that satisfy the equation f(x)=0.
Therefore, to find the zeros of the given function, set it to zero and solve for x.
Factor the quadratic:
\(\implies x^2+x-20=0\)
\(\implies x^2+5x-4x-20=0\)
\(\implies x(x+5)-4(x+5)=0\)
\(\implies (x-4)(x+5)=0\)
\(\boxed{\begin{minipage}{8.4 cm}\underline{Zero Product Property}\\\\If $a \cdot b = 0$ then either $a = 0$ or $b = 0$ (or both).\\\end{minipage}}\)
Apply the Zero Product Property:
\(\implies x-4=0 \implies x=4\)
\(\implies x+5=0 \implies x=-5\)
Therefore, the zeros of the given quadratic polynomial are:
x = -5x = 45 and 3/4 divided by 1 and 1/2
Answer:Exact Form:
23/6
Decimal Form:
3.83
Mixed Number Form:
3 5/6
what is 1/16 minus 7/12 i need help
What is the yield to maturity of a ten-year, $1000 bond with a 5.2% coupon rate and semi-annual coupons if this bond is currently trading for a price of $884?
5.02%
6.23%
6.82%
12.46%
G
5.20%
The yield to maturity of a ten-year, $1000 bond with a 5.2% coupon rate and semi-annual coupons, if the =bond is currently trading for a price of $884, is 6.23%. Thus, option a and option b is correct
Yield to maturity (YTM) is the anticipated overall return on a bond if it is held until maturity, considering all interest payments. To calculate YTM, you need to know the bond's price, coupon rate, face value, and the number of years until maturity.
The formula for calculating YTM is as follows:
YTM = (C + (F-P)/n) / ((F+P)/2) x 100
Where:
C = Interest payment
F = Face value
P = Market price
n = Number of coupon payments
Given that the bond has a coupon rate of 5.2%, a face value of $1000, a maturity of ten years, semi-annual coupon payments, and is currently trading at a price of $884, we can calculate the yield to maturity.
First, let's calculate the semi-annual coupon payment:
Semi-annual coupon rate = 5.2% / 2 = 2.6%
Face value = $1000
Market price = $884
Number of years remaining until maturity = 10 years
Number of semi-annual coupon payments = 2 x 10 = 20
Semi-annual coupon payment = Semi-annual coupon rate x Face value
Semi-annual coupon payment = 2.6% x $1000 = $26
Now, we can calculate the yield to maturity using the formula:
YTM = (C + (F-P)/n) / ((F+P)/2) x 100
YTM = (2 x $26 + ($1000-$884)/20) / (($1000+$884)/2) x 100
YTM = 6.23%
Therefore, If a ten-year, $1000 bond with a 5.2% coupon rate and semi-annual coupons is now selling at $884, the yield to maturity is 6.23%.
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PLEASE I NEED THIS QUICK!!!!!
Susan wants to make pumpkin bread and zucchini bread for the school bake sale. She has 15 eggs and 16 cups of flour in her pantry. Her recipe for one loaf of pumpkin bread uses 2 eggs and 3 cups of flour. Her recipe for one loaf of zucchini bread uses 3 eggs and 4 cups of flour. She plans to sell pumpkin bread loaves for $5 each and zucchini bread loaves for $4 each. Susan wants to maximize the money raised at the bake sale. Let x represent the number of loaves of pumpkin bread and y represent the number of loaves of zucchini bread Susan bakes.
What is the objective function for the problem?
P = 15x + 16y
P = 5x + 7y
P = 5x + 4y
P = 4x + 5y
A figure has vertices A = (0, 0), B = (1, 3), C = (0, 4), and D = (-1, 1). Which of the following is the MOST precise classification for figure ABCD?
Answer:
Parallelogram
Step-by-step explanation:
The sides match up
The most precise classification for figure ABCD will be a parallelogram.
What is the quadrilateral?The definition of a quadrilateral is a planar form with four sides, four vertices, and four angles. Concave and convex are the two primary kinds.
Type of quadrilateral are:
Trapezoid.Rectangle.Parallelogram.Rhombus.Square.Kite.A figure has vertices A = (0, 0), B = (1, 3), C = (0, 4), and D = (-1, 1).
The distance between AB is given as,
AB = √[(1 - 0)² + (3 - 0)²]
AB = √10 units
The distance between AD is given as,
AD = √[(-1 - 0)² + (1 - 0)²]
AD = √2 units
The measure of the adjacent sides is not equal. Then the MOST precise classification for figure ABCD will be a parallelogram.
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design an algorithm which given a dfa m as input (over the alphabet {0, 1}) and an integer n, decides if there is a string of length n in l(m ). the running time of the procedure should be polynomial in n and |q| (where q is the set of states of m ).
An algorithm which given a DFA m as input (over the alphabet {0, 1}) and an integer n, decides if there is a string of length n in l(m ) is designed and the running time is O(n|Q||Σ|).
Let us denote the given DFA as M = (Q, Σ, δ, q0, F), where Q is the set of states, Σ is the input alphabet, δ is the transition function, q0 is the initial state, and F is the set of accepting states.
The DFS function will take two arguments, the current state q and the remaining length of the string n. If n is 0, we will check if q is an accepting state. If it is, we will return True; otherwise, we will return False.
If n is not 0, we will iterate over all possible symbols in Σ and check if there is a transition from state q to a new state q' on the current symbol.
If there is, we will check if the visited[q'][n-1] is False. If it is, we will set visited[q'][n-1] to True and call DFS(q', n-1). If DFS(q', n-1) returns True, we will return True; otherwise, we will continue iterating over the remaining symbols.
If we have exhausted all symbols in Σ and have not found an accepting string of length n starting from state q, we will return False.
The running time of this algorithm is polynomial in n and |Q|, since we visit each state at most once for each possible length of the string, and we iterate over all possible symbols in Σ for each state. Therefore, the overall running time is O(n|Q||Σ|).
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What is the slope of a line that
contains the points (4, 3) and (-1, -4)?
Answer:
I believe its -7/5 unless they want -7/-5
Step-by-step explanation:
(4,3) (-1,-4)
X1,y1 x2,y2
And it should be
Y2-y1
X2-x1
-4-3 = -7
Over
-1-4 = -5
So -7/5 or -7/-5 whatever your teacher perfers
Hope this helps
What is the value of x in the equation 2x + 3 = 11?
Answer:
2x4=8+3=11
Step-by-step explanation:
first multiply 2 times 4 equals 8 and add 3 which equals 11.
Question
C.
A student's pay of $22 an hour is $7 more than twice the amount the student earns
per hour at an internship. Enter and solve an equation to find the hourly pay of the
internship.
= 2x +
The internship pays $
an hour.
Answer:
The internship pays $7.5 an hour.
Step-by-step explanation:
From the information given, the equation would indicate that the amount the student earns per hour at the intership for two plus seven would be equal to 22:
2x+7=22
Now, you can solve for x:
2x=22-7
2x=15
x=15/2
x=7.5
According to this, the answer is that the internship pays $7.5 an hour.
Can some one solve 1 for me plz I need to pass this test it is timed
I’ll give out a crown
Answer:
(x +8) (x - 3)
Step-by-step explanation:
Hope it helps you in your learning process.