One tail-two tail rejection regions

Reference no: EM13111285

1. For each of the following statements, formulate appropriate null and alternative hypothese, indicate whether the appropriate test will be one-tail or two-tail, then sketch a diagram that shows the approximate location of the rejection region(s) for the test.

a. The average college student spends no more than $300 per semester a the university's bookstore.

b. The average adult drinks 1.5 cups of coffee per day

c. The average SAT score for entering freshmen is at least 1200

d. The average employee put in 3.5 hours of overtime last week.

2. For each of the following test and z values, determine the p-value for the test:

a. left-tail test and z = -1.62

b. right-tail test and z = 1.43

c. two-tail test and z = 1.27

Reference no: EM13111285

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