# Question

The analyst in Exercise 8 wants to know if the mean purchase amount of all transactions is at least $40.

a) What is the null hypothesis?

b) Is the alternative one- or two-sided?

c) 'What is the value of the test statistic?

d) What is the P-value of the test statistic?

e) What do you conclude at alpha = 0.05?

a) What is the null hypothesis?

b) Is the alternative one- or two-sided?

c) 'What is the value of the test statistic?

d) What is the P-value of the test statistic?

e) What do you conclude at alpha = 0.05?

## Answer to relevant Questions

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