You are testing the claim that the mean GPA of night students is greater than the mean GPA of day students. You sample 35 night students, and the sample mean GPA is 2.32 with a standard deviation of 0.43 You sample 45 day students, and the sample mean GPA is 2.49 with a standard deviation of 0.5 Calculate the test statistic, rounded to 2 decimal places

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 6CR
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You are testing the claim that the mean GPA of night students is greater than the mean GPA of day students.
You sample 35 night students, and the sample mean GPA is 2.32 with a standard deviation of 0.43
You sample 45 day students, and the sample mean GPA is 2.49 with a standard deviation of 0.5
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 greater than the mean GPA of day students. You sample 35 night students, and the sample mean GPA is 2.32 with a standard deviation of 0.43 You sample 45 day students, and the sample mean GPA is 2.49 with a standard deviation of 0.5 Calculate the test statistic, rounded to 2 decimal places
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ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt