3. A college professor suspects that students at his school are getting less than 8 hours of sleep a night, on average. To test his belief, the professor asks a random sample of 31 students, "How much sleep did you get last night?". His results had a mean of 7.6 hours and standard deviation of 1.52 hours. Do these data provide convincing evidence at the a = 0.01 significance level in support of the professor's suspicion? (5 points)
3. A college professor suspects that students at his school are getting less than 8 hours of sleep a night, on average. To test his belief, the professor asks a random sample of 31 students, "How much sleep did you get last night?". His results had a mean of 7.6 hours and standard deviation of 1.52 hours. Do these data provide convincing evidence at the a = 0.01 significance level in support of the professor's suspicion? (5 points)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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