MGMT 305 An advertising firm is creating an ad campaign for Torto, an auto insurer. They test 2ads with focus groups. In the first ad, a cute green cartoon turtle makes jokes and getsinto funny situations with his car

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An advertising firm is creating an ad campaign for Torto, an auto insurer. They
test 2ads with focus groups. In the first ad, a cute green cartoon turtle makes
jokes and getsinto funny situations with his car, then says he wishes he had
Torto insurance. 47 out ofthe 72 people in focus group 1 say that they found
the ad effective. In the second ad, aprofessional looking spokesperson
provides clear, detailed information about Torto’s ratestructure and claims
processing and how these compare with other well-known insurers.29 out of
the 66 people in focus group 2 say they found the ad effective. Compute
byhand a 95% confidence interval for the difference in the effectiveness
proportions of theads. Use Minitab to confirm your answer.