You are testing the claim that the mean GPA of night students is different than the mean GPA of day students. You sample 55 night students, and the sample mean GPA is 2.82 with a standard deviation of 0.76 You sample 50 day students, and the sample mean GPA is 2.77 with a standard deviation of 0.38

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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You are testing the claim that the mean GPA of night students
is different than the mean GPA of day students.
You sample 55 night students, and the sample mean GPA is
2.82 with a standard deviation of 0.76
You sample 50 day students, and the sample mean GPA is 2.77
with a standard deviation of 0.38
Calculate the test statistic, rounded to 2 decimal places
Transcribed Image Text:You are testing the claim that the mean GPA of night students is different than the mean GPA of day students. You sample 55 night students, and the sample mean GPA is 2.82 with a standard deviation of 0.76 You sample 50 day students, and the sample mean GPA is 2.77 with a standard deviation of 0.38 Calculate the test statistic, rounded to 2 decimal places
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