Business, 11.12.2019 06:31, microwave13016

Parents of teenage boys often complain that auto insurance costs more, on average, for teenage boys than for teenage girls. a group of concerned parents examines a random sample of insurance bills. sample 1 is comprised of 31 teenage boys sample 2 is comprised of 26 teenage girls. the mean annual cost for teenage boys was 725. for teenage girls, it was 600. from past years, it is known that the population standard deviation for boys is 180 and for girls is 185. determine whether or not you believe that the mean cost for auto insurance for teenage boys is different than that of teenage girls, using α=0.05.

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Parents of teenage boys often complain that auto insurance costs more, on average, for teenage boys...