1. An online retailer ships products from overseas with an advertised delivery date within 29 days. To test whether or not deliveries are made within the advertised time, a random sample of 45 orders is selected from a normal population. The sample mean delivery time is 31 days, and the standard deviation is 3 days. Given the following hypothesis:

H0:29

H¹:>29

Using the 0.10 significance level:

a) State the decision rule.( Round the final answer to 3 decimal places)

Reject H₀if it > --------

b) Compute the value of the test statistic.

c)What is your decision regarding the null hypothesis?

------- H₀. At the 0.01 significance level, the mean ------ greater than 29.