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Statistics / Elementary Statistics: A Step by Step Approach 8th ed. 8 / Chapter 8-2 / Problem 25

Elementary Statistics: A Step by Step Approach 8th ed. | 8th Edition | ISBN: 9780073386102 | Authors: Allan G Bluman Professor Emeritus

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Sick Days Amanager states that in his factory, the average

Chapter 8, Problem 25

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QUESTION:

Sick Days Amanager states that in his factory, the average number of days per year missed by the employees due to illness is less than the national average of 10. The following data show the number of days missed by 40 employees last year. Is there sufficient evidence to believe the managers statement at a_0.05? s _ 3.63. Use the P-value method. 0 6 12 3 3 5 4 1 3 9 6 0 7 6 3 4 7 4 7 1 0 8 12 3 2 5 10 5 15 3 2 5 3 11 8 2 2 4 1 9

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QUESTION:

Sick Days Amanager states that in his factory, the average number of days per year missed by the employees due to illness is less than the national average of 10. The following data show the number of days missed by 40 employees last year. Is there sufficient evidence to believe the managers statement at a_0.05? s _ 3.63. Use the P-value method. 0 6 12 3 3 5 4 1 3 9 6 0 7 6 3 4 7 4 7 1 0 8 12 3 2 5 10 5 15 3 2 5 3 11 8 2 2 4 1 9

ANSWER:

Step 1 of 4

From the data given in the exercise we can calculate sample mean with the formula

Significance level:

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