The population of all verbal GRE scores are known to have a standard deviation of 8.5. The psychology department hopes to receive appliacnts with a verbal GRE score of over 210. This year, the mean verbal GRE score for the 42 applicants was 212.9 Using a alpha= 0.05 is this new mean significantly greater than the desired mean of 210? a. Is this a one-tailed test or two -tailed test? Explain why? b. Conduct the appropriate hypothesis test to determine whether the new mean is significantly greater, as hypothesised.
The population of all verbal GRE scores are known to have a standard deviation of 8.5. The psychology department hopes to receive appliacnts with a verbal GRE score of over 210. This year, the mean verbal GRE score for the 42 applicants was 212.9 Using a alpha= 0.05 is this new mean significantly greater than the desired mean of 210? a. Is this a one-tailed test or two -tailed test? Explain why? b. Conduct the appropriate hypothesis test to determine whether the new mean is significantly greater, as hypothesised.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 23PFA
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The population of all verbal GRE scores are known to have a standard deviation of 8.5. The psychology department hopes to receive appliacnts with a verbal GRE score of over 210. This year, the
a. Is this a one-tailed test or two -tailed test? Explain why?
b. Conduct the appropriate hypothesis test to determine whether the new mean is significantly greater, as hypothesised.
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