The average GPA of a random sample of 39 college students who take evening classes was calculated to be 2.1 with a standard deviation of 0.03. The average GPA of a random sample of 19 college students who take daytime classes was calculated to be 2.15 with a standard deviation of 0.02. Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the .01 significance level. Claim: Select an answer which corresponds to Select an answer Opposite: Select an answer which corresponds to Select an answer The test is: Select an answer The test statistic is: t = (to 2 decimals) The P-value is: Select an answer Based on this we: Select an answer Conclusion There Select an answer appear to be enough evidence to support the claim that the mean GPA of night students is smaller than the mean GPA of day students.
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State the null and alternative hypotheses: Null hypothesis (H0): The mean GPA of night students is equal to the mean GPA of day students, i.e., Ī¼1 = Ī¼2. Alternative hypothesis (H1): The mean GPA of night students is smaller than the mean GPA of day students, i.e., Show moreā¦
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Lucas F.
The average GPA of a random sample of 11 college students who take evening classes was calculated to be 3.15 with a standard deviation of 0.06. The average GPA of a random sample of 23 college students who take daytime classes was calculated to be 3.2 with a standard deviation of 0.02. Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the .025 significance level. Claim: Select an answer which corresponds to Select an answer Opposite: Select an answer which corresponds to Select an answer The test is: Select an answer The test statistic is: t = (to 2 decimals) The P-value is: Select an answer Based on this we: Select an answer Conclusion There Select an answer appear to be enough evidence to support the claim that the mean GPA of night students is smaller than the mean GPA of day students.
James K.
1.) The average GPA of a random sample of 13 college students who take evening classes was calculated to be 2.7 with a standard deviation of 0.04. The average GPA of a random sample of 17 college students who take daytime classes was calculated to be 2.67 with a standard deviation of 0.05. Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the .025 significance level. Claim: ____? which corresponds to ____? Opposite: ____? which corresponds to ____? The test is: Left, right or two tailed ? The test statistic is: t = ____? The critical value is: t?= ___? Based on this we: reject, accept, fail to reject or cannot determine hypothesis ? There Select an answer does or does not appear? to be enough evidence to support the claim that the mean GPA of night students is larger than the mean GPA of day students.
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