Chi square test for shopping preference
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The manager of a Farmer Jack Super Market would like to know if there is a preference for the day of the week on which customers do their shopping. A sample of 420 families revealed the following. At the 0.05 significance level, is there a difference in the proportion of customers that prefer each day of the week?
Day of the week Number of persons
Monday 20
Tuesday 30
Wednesday 20
Thursday 60
Friday 80
Saturday 130
Sunday 80
a. State the null and alternate hypotheses.
H0: ______________________________________________________________________
H1: ______________________________________________________________________
b. State the decision rule.
___________________________________________________________________________
c.
c. Compute the value of the test statistic.
Day of week
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Total
d. What is your decision regarding the null hypothesis? Interpret the result.
_____________________________________________________________________________
_____________________________________________________________________________
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Solution Summary
The solution provides step by step method for the calculation of Chi squares goodness of fit statistic for Shopping preference . Formula for the calculation and Interpretations of the results are also included.
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