Part I. Chi-Square Goodness of Fit Test (equal frequencies)

| August 31, 2017

Question
Part I. Chi-Square Goodness of Fit Test (equal frequencies)

In order to determine staffing levels, a hospital wants to determine if births occur with the same frequency on each day of the week. The table below lists the days of the week selected by a random sample of 100 births. Consider the claim that the days of the week have the same frequency of a birth occurring.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

32

16

7

20

11

8

6

Instructions for performing this test in Stat Disk can be found in the Stat Disk User’s Manual under Goodness of Fit, Equal Frequencies.

Instructions

Answers

1. Use the Chi-Square Goodness-of-Fit test to see if there is a difference between the frequency of births and days of the week. Use a significance level of.01.

Paste results here.

2. What are we trying to show here?

3. What is the p-value and what does it represent in the context of this problem?

4. State in your own words what the results of this Goodness-of-fit test tells us.

5. Repeat the above procedure using only the weekdays Paste results here. Did you get different results? What do they mean?

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