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Solved: Question refer to the sample data in the following

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 2CQQ Chapter 11.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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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. D a y N u m b e r 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?

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Step 1 of 3

Solution 2CQQ Step1: From the above given problem we have, Days mon tue wed thu fri Number 23 23 21 21 19 Here, Defn : Observed frequencies are counts made from experimental data. Observed frequency for monday is O = 23 Defn: Expected frequencies are counts calculated using probability theory. Expected frequency for monday can be calculated by E = 23+23+21+21+19 5 = 21.4 Therefore, the expected value is E = 21.4

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Chapter 11.3, Problem 2CQQ is Solved
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Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Solved: Question refer to the sample data in the following