SECTION 18.1 1. Which method? Which of the following scenarios should be analyzed as paired data? a) Students take an MCAT prep course. Their before and after scores are compared. b) 20 male and 20 female students in class take a midterm. We compare their scores. c) A group of college freshmen are asked about the quality of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do student’s opinions change during their time at school?

Question

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Answer 1

Textbook Question

Chapter 21, Problem 1E

SECTION 18.1

1. Which method? Which of the following scenarios should be analyzed as paired data?

a) Students take an MCAT prep course. Their before and after scores are compared.
b) 20 male and 20 female students in class take a midterm. We compare their scores.
c) A group of college freshmen are asked about the quality of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do student’s opinions change during their time at school?

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

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The following is a list of data on the duration of a sample of 200 outbreaks, in hours. 107 73 68 97 76 79 94 59 98 57 54 65 71 70 84 88 62 82 61 79 98 66 62 79 86 68 74 61 62 116 65 88 64 79 78 74 92 75 5289 85 28 73 80 68 78 89 72 78 88 77 103 88 63 68 90 62 89 71 71 74 222 R 82 79 70 ST☑ 65 98 77 86 58 69 88 81 74 70 65 81 75 81 78 90 78 96 75 KRRE F S 62 94 62 79 83 93 135 71 85 84 83 63 61 65 83 70 70 81 77 72 84 33 62 92 65 67 59 58 66 66 94 77 63 71 101 78 43 78 66 75 68 76 59 67 61 71 64 76 72 77 74 65 82 86 66 86 68 85 27% 96 72 77 60 67 87 83 68 72 74 91 76 83 งงง 8 སྐྱ ཐྭ ༄ ཏྱཾ 89 81 71 85 99 59 92 87 84 75 77 51 45 80 84 93 69 76 89 75 67 92 89 82 96 77 102 66 68 61 73 72 76 73 77 79 94 63 59 62 71 81 65 73 63 63 89 82 64 85 92 64 73 a. What is the variable? What type? b. Construct an interval-frequency table, with columns containing: class mark, absolute frequency, relative frequency, cumulative frequency, cumulative relative frequency, and percentage frequency.

Answer 2

Textbook Question

Chapter 21, Problem 1E

SECTION 18.1

1. Which method? Which of the following scenarios should be analyzed as paired data?

a) Students take an MCAT prep course. Their before and after scores are compared.
b) 20 male and 20 female students in class take a midterm. We compare their scores.
c) A group of college freshmen are asked about the quality of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do student’s opinions change during their time at school?

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

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Answer 3

Textbook Question

Chapter 21, Problem 1E

SECTION 18.1

1. Which method? Which of the following scenarios should be analyzed as paired data?

a) Students take an MCAT prep course. Their before and after scores are compared.
b) 20 male and 20 female students in class take a midterm. We compare their scores.
c) A group of college freshmen are asked about the quality of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do student’s opinions change during their time at school?

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

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Answer 4

Textbook Question

Chapter 21, Problem 1E

SECTION 18.1

1. Which method? Which of the following scenarios should be analyzed as paired data?

a) Students take an MCAT prep course. Their before and after scores are compared.
b) 20 male and 20 female students in class take a midterm. We compare their scores.
c) A group of college freshmen are asked about the quality of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do student’s opinions change during their time at school?

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

Answer 8

a.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

Identify the situation that has paired data.

Answer 13

Answer to Problem 1E

The data is analyzed as paired.

Answer 14

Explanation of Solution

Given info:

The data represents the scores of the students in MCAT.

Justification:

The scores of the students were paired because the scores of the students before and after were dependent on the MCAT prep course.

Answer 15

b.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is not paired.

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

Answer 16

b.

Expert Solution

Answer 17

b.

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

Identify the situation that has paired data.

Answer 20

Answer to Problem 1E

The data is not paired.

Answer 21

Explanation of Solution

Given info:

The data represents the scores of the males and females students.

Justification:

The scores of the male and female studentswere not pairedbecause the scores of the male is different and independent from the scores of female.

Answer 22

c.

Expert Solution

To determine

Identify the situation that has paired data.

Answer to Problem 1E

The data is analyzed as paired.

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

Answer 23

c.

Expert Solution

Answer 24

c.

Expert Solution

Answer 25

Expert Solution

Answer 26

To determine

Identify the situation that has paired data.

Answer 27

Answer to Problem 1E

The data is analyzed as paired.

Answer 28

Explanation of Solution

Given info:

The data represents on selecting the group of freshmen to know the quality of the cafeteria at the beginning and a year later.

Justification:

The data taken from the students were paired because the survey was taken twice from the students. The response of the students was integrated.

Answer 29

Ch. 21.4 - Think about each of the situations described...Ch. 21.4 - Prob. 2JC Ch. 21.4 - Are parents equally strict with boys and girls? In...Ch. 21.4 - Prob. 4JC Ch. 21.4 - Prob. 5JC Ch. 21 - SECTION 18.1 1. Which method? Which of the...Ch. 21 - Prob. 2E Ch. 21 - SECTION 18.2 3. Cars and trucks We have data on...Ch. 21 - Prob. 4E Ch. 21 - Prob. 5E

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Answer to Problem 1E

Explanation of Solution

Answer to Problem 1E

Explanation of Solution

Answer to Problem 1E

Explanation of Solution

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