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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?
1. State null and alternate hypothesis.
2. State the decision rule.
3. Compute the value of the statistic.
4. What is the decision. interpret the result.
Day of the week Number of persons
Monday 20
Tuesday 30
Wednesday 20
Thursday 60
Friday 80
Saturday 130
Sunday 80
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