Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.05 significance level. The null and alternative hypothesis would be: Ho:p = 0.7 H:p = 0.7 Ho:µ = 2.8 Ho:p = 0.7 Ho:µ = 2.8 Ho:µ = 2.8 o H1:p > 0.7 H1:p # 0.7 H1: µ # 2.8 H1:p < 0.7 H1:µ < 2.8 H1:µ > 2.8 The test is: right-tailed two-tailed left-tailed o Based on a sample of 20 people, the sample mean GPA was 2.81 with a standard deviation of 0.08 The test statistic is: (to 2 decimals) The positive critical value is: (to 2 decimals)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.05
significance level.
The null and alternative hypothesis would be:
Ho:p = 0.7 H:p= 0.7 Ho:µ = 2.8 Ho:p = 0.7 Ho:µ = 2.8 Ho:µ = 2.8 o
Н:р > 0.7 Ні:р + 0.7 Hi:р + 2.8 Ні:р < 0.7 H:р < 2.8 Hi:д > 2.8
The test is:
right-tailed two-tailed left-tailed o
Based on a sample of 20 people, the sample mean GPA was 2.81 with a standard deviation of 0.08
The test statistic is:
(to 2 decimals)
The positive critical value is:
(to 2 decimals)
Transcribed Image Text:Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.05 significance level. The null and alternative hypothesis would be: Ho:p = 0.7 H:p= 0.7 Ho:µ = 2.8 Ho:p = 0.7 Ho:µ = 2.8 Ho:µ = 2.8 o Н:р > 0.7 Ні:р + 0.7 Hi:р + 2.8 Ні:р < 0.7 H:р < 2.8 Hi:д > 2.8 The test is: right-tailed two-tailed left-tailed o Based on a sample of 20 people, the sample mean GPA was 2.81 with a standard deviation of 0.08 The test statistic is: (to 2 decimals) The positive critical value is: (to 2 decimals)
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