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

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?

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