please complete the following

AP\" Statistics 2021 Free-Response Questions Begin your response to QUESTION 4 on this page. 4. The manager of a large company that sells pet supplies onlinc wants to increase sales by encouraging repeat purchases. The manager believes that if part customers are offered $10 off their next purchase, more than 40 percent of them will place an order. To investigate the belief. 90 customers who placed an order in the past year are selected at random. Each of the selected customers is sent an e-mail with a coupon for 510 off the next purchase if the order is placed within 30 days. Of those who receive the coupon. 38 place an order. (a) Is there convincing statistical evidence. at the signicance level of o = 0.05. that the manager's belief is correct? Complete the appropriate inference procedure to support your