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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
An estimated population variance of 200. a.) What is the standard deviation of the distribution of differences between means? b.) What is the mean? c.) What will be its shap
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