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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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Question refer to the sample data in the

Chapter 11, Problem 2 CQQ

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QUESTION:

Problem  2CQQ

Question refer to the sample data in the following table (based on data from the Bureau of Labor Statistics). The table lists frequencies for randomly selected nonfatal occupation injuries arranged according to day of the week. Assume that we want to use a 0.05 significance level to test the claim that such injuries occur with equal frequency on different days of the week.

Day

Mon

Tues

Wed

Thurs

Fri

Number

23

23

21

21

19

When testing the claim in Question, what are the observed and expected frequencies for Monday?

Question

What are the null and alternative hypotheses corresponding to the stated claim?

Questions & Answers

QUESTION:

Problem  2CQQ

Question refer to the sample data in the following table (based on data from the Bureau of Labor Statistics). The table lists frequencies for randomly selected nonfatal occupation injuries arranged according to day of the week. Assume that we want to use a 0.05 significance level to test the claim that such injuries occur with equal frequency on different days of the week.

Day

Mon

Tues

Wed

Thurs

Fri

Number

23

23

21

21

19

When testing the claim in Question, what are the observed and expected frequencies for Monday?

Question

What are the null and alternative hypotheses corresponding to the stated claim?

ANSWER:

Solution  2CQQ

Referring to the given data, the observed frequency for Monday is

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