## [answered] A survey of a random sample of 48 students was conducted by

A survey of a random sample of 48 students was conducted by a group of statistics students to investigate the relationship between Sleep=average sleep time per night (in hours) and the following variables:

Study =average study time per day (in hours)

CoffeeCups =average number of cups of coffee consumed by a student per day, and

Extra = average number of extra-curricular activities per day

Female (1 =female, 0 = male)

Age=age in years

Given the following minitab output answer the following:

a)?Fill in an empty cell (Sleep/Female) in the correlation matrix.

b)?They also thought that the average sleep time in the population of an undergraduate student is more that 7 hours. Is there evidence in the data, at alpha = 0.05 that they were right? (State the hypothesis test, rejection rule and your conclusion)

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This question was answered on: Sep 18, 2020

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