Mathematics, 28.03.2020 23:29, Tahliyah9420

A. Student study times. A class survey in a large class for first-year college students asked, "About how many hours do you study during a typical week?" The mean response of the 463 students
was Hx= 13.7 hours. Suppose that we know that the study time follows a Normal distribution with standard deviation o= 7.4 hours in the population of all first-year students at this university

A. Use the survey result to give a 99% confidence interval for the mean study time of all first-year students.

B. What condition not yet mentioned must be met for your confidence interval to be valid

Answers: 1

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A. Student study times. A class survey in a large class for first-year college students asked, "Abou...