A researcher asked 933 people what their favourite type of TV programme was: news, documentary, soap or sports. They could only choose one answer. As such, the researcher had the number of people who chose each category of programme. How should she analyse these data?

a. T-test

b. One-way analysis of variance

c. Chi-square test

d. Regression

Answers

Answer 1

The researcher should analyze the data obtained from 933 people who were asked about their favorite type of TV program, with the condition that they could only choose one answer. The appropriate statistical test to analyze these data is c. Chi-square test.

The Chi-square test is used for analyzing categorical data, which is the case in this scenario where individuals have to choose among news, documentary, soap, or sports. The test will help the researcher determine if there is a significant difference in preferences for TV program types among the respondents.

The specific techniques and statistical tests used may vary depending on the goals of the research and the nature of the data.

Therefore option c is correct.

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Related Questions

Carlos ran 23.7 miles less than Lisa last week. Carlos
ran 8.3 miles. How many miles did Lisa run? Write an
equation to show the number of miles Lisa ran. Let m
represent the miles Lisa ran. Show your work.

Answers

Answer:

Step-by-step explanation:

23.7 < m = 8.3 m > 23.7

Concept 9.6: Find measure of angle 2. Assume that any segments that appear to be tangent are tangent.

Answers

Answer:

<2= 113

Step-by-step explanation:

134/2=67

TANGENT LINES ARE SUPPLEMENTARY

180-67=113

Write the fraction below as a sum or difference. 5x + 2 over 7

$Write the fraction below as a sum or difference. 5x + 2 over 7$

Answers

Answer:

f ^-1 (x) =7X/5 - 2/5

Step-by-step explanation:

Help me you guys! it's important!

Answers

Answer:

hey mate

surface area of cuboid is 2(lh+bh+hl)

doing for first cuboid

h = 20

l = 6

b = 5

surface area for this cuboid on calculating u get 500 sq.cm

now

second cuboid

h = 12

l = 6

b = 4

calculaye it by formula and u get 288 sq.cm

so total surface area is 500 + 288 = 788 but in this one side is getting counted 2 times which is rectangle with length 6 and 12 so it's area is 12×6 = 72

final ans = 788-72 = 716 cm2

as per me that's ans

brinliest pls

Despejar la variable
2x al cuadrado + 15= 113

Answers

Hola!

x = 7 , x = -7

Explicación:

Comienza restando 15 en cada lado:

$2x^{2} + 15 -15=113-15$

Usted obtiene:

$2x^{2} =98$

Ahora divide ambos lados por 2:

$\frac{2x^{2} }{2} =\frac{98}{2}$

Usted obtiene:

$x^{2} =49$

Como la ecuación está al cuadrado, tendrás que hacer:

$x=\sqrt{f(a)} , x=-\sqrt{f(a)}$

que te da: $x=\sqrt{49} , x =-\sqrt{49}$

Entonces:

$\sqrt{49}=7 , -\sqrt{49} = -7$

HELP PLEASE I USED ALL MY POINTS

Solve for x.

3.5(7-x)+32=106-1.5(4x+18)

Answers

Answer:

Step-by-step explanation:

hope this helps

Answer: x = 9

Step-by-step explanation:

3.5(7-x)+32=106-1.5(4x+18) remove parentheses

24.5 - 3.5x + 32 = 106 - 6x - 27

56.5 - 3.5x = 79 - 6x move terms

-3.5x + 6x = 79 - 56.5

2.5x = 22.5 divide both sides by 2.5

x = 9

pls brainliest <3 , hope it helped too

You have completed 1000 simulation trials, and determined that the average profit per unit was $6.48 with a sample standard deviation of $1.91. What is the upper limit for a 89% confidence interval for the average profit per unit

Answers

The upper limit for the 89% confidence interval of the average profit per unit, based on the 1000 simulation trials, is estimated to be $6.98.

Find the upper limit of the 89% confidence interval ?

To find the upper limit for an 89% confidence interval for the average profit per unit, we can use the following formula:

Upper limit = sample mean + margin of error

The margin of error can be calculated using the following formula:

Margin of error = z* (standard deviation/ sqrt(n))

where z* is the z-score associated with the level of confidence we are interested in, n is the sample size, and the standard deviation is the sample standard deviation.

To find the z-score associated with an 89% confidence interval, we can use a standard normal distribution table or a calculator. The z-score for an 89% confidence interval is approximately 1.645.

Substituting the given values in the formula, we get:

Margin of error = 1.645 * (1.91 / sqrt(1000)) = 0.099

Now, we can calculate the upper limit as:

Upper limit = sample mean + margin of error = 6.48 + 0.099 = 6.579

Therefore, the upper limit for an 89% confidence interval for the average profit per unit is $6.579.

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Question is in the pic

Answers

If you were to graph the equation given then it would look like this.

y=m(x)+b is the equation
m is the slope(1/2)
b is where the line crosses the y-axis(-3)
so you go to negative 3 on the y axis and go up 1 and over 2 and repeat the pattern

Here is a sample of data: 1 2 2 3 3 3 4 4 5 5 6 7 8 9 10 10 12
15 16 30 a) Determine the following values.
minimum
maximum
Q1
Q2
Q3 range
interquartile range

Answers

From the sample minimum and maximum is 1 and 30 respectively.

Q1,Q2,Q3,range, interquartile range are 2.5, 6, 8.5, 30, 6 respectively.

Let's have further explanation:

Q1 (also known as the first quartile): 4 (This is calculated by finding the median of the first half of the data set, which in this case is 2 + 3 = 2.5 and then rounding up to 4)

Q2 (also known as the second quartile, or the median): 6 (This is found by finding the middle value of the data set, which in this case is 6)

Q3 (also known as the third quartile): 10 (This is calculated by finding the median of the second half of the data set, which in this case is 8 + 9 = 8.5 and then rounding up to 10)

Range: 30 (This is found by subtracting 16 from 30, which is a difference of 14)

Interquartile Range: 6 (This is calculated by subtracting Q1 from Q3, which is a difference of 6).

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PLEASE HELP ME IM
RUNNING OUT OF TIME

Answers

90 minutes

First, we see that at 0 minutes, the container is completely full at 900ml. If you look on the graph, you can see that the container is at 800ml after 10 minutes. This is key because it tells us that the container leaks 100ml every 10 minutes. We can then figure up that 900, when losing 100ml every 10 minutes, will eventually run dry after 90 minutes. You can set up a proportion to check your work, which would look like this: 10 over 100 is equal to x over 900.

The inductive step of an inductive proof shows that for k ≥ 4 , if 2 k ≥ 3 k , then 2 k + 1 ≥ 3 ( k + 1 ) . In which step of the proof is the inductive hypothesis used? 2 k + 1 ≥ 2 ⋅ 2 k (Step 1)
≥ 2 ⋅ 3 k (Step 2)
≥ 3 k + 3 k (Step 3)
≥ 3 k + 3 (Step 4)
≥ 3 ( k + 1 ) (Step 5)

a. Step 1
b. Step 2
c. Step 3
d. Step 4

Answers

The proof progresses from step (c) to (d), (e), and finally concludes with (e), showing that 2^k+1 ≥ 3^(k+1). Therefore, step (c) is where the inductive hypothesis is used in this particular proof.

The inductive hypothesis is used in step (c) of the proof, which states that 2^k ≥ 3^k.

In an inductive proof, the goal is to prove a statement for all positive integers, typically starting from a base case and then applying the inductive step. The inductive hypothesis assumes that the statement is true for some value, usually denoted as k. Then, the inductive step shows that if the statement holds for k, it also holds for k + 1.

In this case, the inductive hypothesis assumes that 2^k ≥ 3^k is true. In step (c), the proof requires showing that if 2^k ≥ 3^k holds, then 2^(k+1) ≥ 3^(k+1). This step relies on the inductive hypothesis because it assumes the truth of 2^k ≥ 3^k in order to establish the inequality for the next term.

By using the inductive hypothesis, the proof progresses from step (c) to (d), (e), and finally concludes with (e), showing that 2^k+1 ≥ 3^(k+1). Therefore, step (c) is where the inductive hypothesis is used in this particular proof.

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t3 2. Verify that (?) and () 9 are linearly independent. t2 Note: No Wronskian or fancy things particularly recommended, while their correct usage will of course lead to a full grade point. [1 point]

Answers

t3 and t2+9 are linearly independent.

To verify that t3 and t2+9 are linearly independent, we need to show that the only solution to the equation c1(t3) + c2(t2+9) = 0 is c1 = 0 and c2 = 0.

Assume that there exist constants c1 and c2, not both zero, such that c1(t3) + c2(t2+9) = 0.

Then, we can rewrite the equation as c1(t3) = -c2(t2+9).

Differentiating both sides with respect to t gives 3c1(t2) = -2c2(t).

We can rearrange this equation to express t2 in terms of t3:

t2 = -\frac{3c1}{2c2}t3.

Substituting this expression for t2 into the original equation gives:

c1(t3) + c2\left(-\frac{3c1}{2c2}t3 + 9\right) = 0.

Simplifying, we get:

\frac{c1}{2}(2t3-9c2) = 0.

Since c1 and c2 are not both zero, we can conclude that 2t3 - 9c2 must be zero.

But this implies that t3 is a multiple of 9/2, which contradicts the fact that t3 is a cubic polynomial.

Therefore, the assumption that there exist nonzero c1 and c2 such that c1(t3) + c2(t2+9) = 0 leads to a contradiction.

Hence, t3 and t2+9 are linearly independent.

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choose the best decimal equivalent to 14/25.

Answers

Answer:

0.56

Step-by-step explanation:

To find the decimal equivalent, we can divide the numerator and denominator together.

14 ÷ 25 = 0.56

Best of Luck!

0.56 would be the best decimal equivalent

Just take a look at the picture and say the answer no explaining

Answers

Answer:

16-25

Step-by-step explanation:

Answer:

16-25 as looking at the bar graph!!

Solve the compound inequality and graph the solutions.-5<<*>12<-X - 12<-24The solutions to the compound inequality aare

Answers

The solutions for the compound inequality are (-8,4) or -8 < x < 4

To solve this, lets divide the inequality in two cases:

$\begin{gathered} \frac{x-12}{4}<-2 \\ or \\ \frac{x-12}{4}>-5 \end{gathered}$

Then let's solve each separeately:

$\begin{gathered} \frac{x-12}{4}<-2 \\ x-12<(-2)\cdot4 \\ x=12-8 \\ x=4 \end{gathered}$

Now for the second part:

$\begin{gathered} \frac{x-12}{4}>-5 \\ x-12>(-5)\cdot4 \\ x>-20+12 \\ x>-8 \end{gathered}$

The the solutions are all x that are bigger than -8 and smaller than 4. We can write this like x = (-8,4) or -8< x < 4

Which equation models the line that passes through points (2, 5) and (3, 1)?

Answers

Answer: y = -4x + 13

Step-by-step explanation:

Given points (2, 5) and (3, 1)

First Step find the slope given the two points:

Use the slope formula $m=\frac{y2 - y1}{x2 - x1}$

$m = \frac{1-5}{3-2} = -4$ (Result)

Slope is equal to -4

Second step plug into y - y1 = m(x - x1) formula (Point Slope Formula)

For this I am using the first coordinate pair given (2, 5)

y - 5 = -4(x-2)

y - 5 = -4x + 8

y = -4x + 13

Which equation represents exponential decay?

Answers

Answer:
The Answer is: B.
Step-by-step explanation:
The form of the equation is:
f(x) = ab^x
When b is greater than 0 and less than 1, the function is an Exponential Decay Function.
B. is f(x) = (.08)^x
In this case, a = 1

Which fraction is equivalent to -3/2?

$Which fraction is equivalent to -3/2?$

Answers

3/-2 so the first option

Which is the approximate measure of angle yzx? 34.8° 39.4° 50.6° 55.2°

Answers

The approximate measure of angle YZX is 39.4°. Option(B) is the correct answer.

we know that

In the right triangle XYZ

$tan(Y Z X)= \frac{opposite side angle YZX}{adjacent side angle YZX}$

In this problem,

Opposite side angle YZX= XY = 12.4cm

Adjacent side angle YZX= YZ = 15.1cm

substitute the values,

$tan ( Y Z X) = \frac{12.4}{15.1}$

$Angle ( Y Z X) = arc tan( \frac{12.4}{15.1} )$

Angle ( Y Z X) = 39.4°

So, the approximate measure of angle YZX is 39.4°.

Answers

The segment AB is a radius and the notation is ↔ AB

Writing the notation with the term that best describes the segment AB

From the question, we have the following parameters that can be used in our computation:

The circle

On the circle, we can see that

The segment AB goes from the center of the circle to a point on the circle

A line that goes from the center of the circle to a point on the circle is the radius of the circle

This means that the segment AB is a radius and the notation is ↔ AB

Answers

Answer:

1/2 + 3/4 + 5/8

4/8 + 6/8 + 5/8 = 15/8 or 1 7/8 cups

Step-by-step explanation:

probably right dunno

This is one batch right? if so shud be right

Find the domain and range og tje ff. Rational function f(x) = 2/x+1

Answers

We know that for this to be rational, it first has to be real.

The only case where it is not is when x+1=0 because x/0 is undefined.

Therefore, x≠-1

Meaning all values except -1 is a value of x;

(-infinity, -1) U (-1, +infinity)

A grocery store charges $0.75 per donut. Which equation can be used to find c, the total cost, in dollars, to buy d donuts?

Answers

Answer:

It should always be addition or multiplication.

Step-by-step explanation:

Common sense, plus you didn't give us any options.

c = 0.75d

$0.75=c....

Write a division problem with these types of numbers.
• The dividend and divisor are both mixed numbers.
•The quotient is a whole number.

Answers

Answer:

Dividend: 3 1/2

Divisor: 1 3/4

To solve this problem, we can convert both mixed numbers to improper fractions:

Dividend: 7/2

Divisor: 7/4

Then we can divide the two fractions:

(7/2) ÷ (7/4) = (7/2) x (4/7) = 2

So the quotient is 2, which is a whole number. Therefore, the division problem 3 1/2 ÷ 1 3/4 = 2 has been solved.

Find two numbers between 3.456 and 3.457

Answers

Answer:

3.4561 and 3.4562

Step-by-step explanation:

there are uncountable infinitely many numbers...

Answer:

Answer is 3.456 , 3.456.

Step-by-step explanation:

3.456=3.4560

3.457=3.4570

then numbers between 3.45610 and 3.4570

is - 3.4561 , 3.4562 , ..........., 3.4570

Please Mark me as Brainliest

Where does the line y = 3x + 5 cross the y-axis?
A: at x=3
B: at x=5
C: at y =5
D: at y=3

Answers

Answer:

The answer is- At y = 5

Step-by-step explanation:

I got is correct on meh math test

The line y = 3x + 5 crosses the y-axis at y = 5. The correct answer would be an option (C).

What is y-Intercept?

The y-intercept is defined as an intercept that is located at the y-axis of the plane, which is the location or coordinates from where the line crosses.

The equation is given in the question

y = 3x + 5

We have to determine the y-intercepts for the given line

To determine the y-intercept, substitute the value of x = 0 in the given equation

y = 3(0) + 5

y = 0 + 5

Apply the subtraction operation, and we get

y = 5

Thus, the line y = 3x + 5 cross the y-axis at y = 5.

Hence, the correct answer would be option (C).

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Where does the line y = 3x + 5 cross the y-axis?A: at x=3B: at x=5C: at y =5D: at y=3

2. Find the surface area of the regular pyramid shown to the nearest whole
number.

Answers

Answer:

208m^2

Step-by-step explanation:

area of hexagon = 93.53 using its equation

area of single triangle = 0.5(6*6)

area of all triangles = 6(0.5(6*6))

total area = 207.53

NWN = 208

Help please ! Thank you!

Answers

:) :) :) :) :) :) :) :) :) :) :) :) :)

You bike 11.2 miles in 1.4 hours at a steady rate. What equation represents the proportional relationship between the x hours you bike and the distance y in miles that you travel?

Answers

Answer:17

Step-by-step explanation:

Answer:

Y=8x

Hope this helped

Step-by-step explanation:

A single person earns a gross biweekly salary of $840 and claims 5 exemptions. How will federal taxes affect his net pay?

Answers

Option (a) it is the same as the gross pay. is true statement about a person who is claiming 5 exemptions and biweekly salary of $ 840.

What separates a gross pay from a net salary?

Yοur incοme is referred tο be yοur grοss pay if it is unaffected by taxes and οther withhοldings.

When referring tο yοur yearly grοss incοme, the phrase "annual pay" is frequently used. Net pay is the amοunt that remains after deductiοns like sοcial security and incοme tax have been made.

the persοn want mοre exemptiοns, it means that persοn thinks that, his οr her salary is less than οthers when cοmpared with οther emplοyee having mοre expenditure, and he οr she dοes nοt want tο pay tax οr will pay minimum amοunt οf tax tο the Gοvernment.

Sο, tο dο this he want exemptiοns.

As,persοn earns a grοss biweekly salary οf $840 and claims 5 exemptiοns.

→it means he οr she want tο reduce his tοtal tax tο minimum amοunt.

→it means he οr she dοes nοt have enοugh mοney in his οr her pοcket thrοughοut the year.

→ there will be nο tax deductiοn οn persοn net pay.And if he fοund caught cheating , he will have tο pay Penality.

Sο, οptiοn (a) it is the same as the grοss pay. is true statement abοut a persοn whο is claiming 5 exemptiοns and biweekly salary οf $ 840.

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