The body temperatures of 65 men and 65 women were compared. The results of a hypothesis test
Question:
The body temperatures of 65 men and 65 women were compared. The results of a hypothesis test are shown. Assume the conditions for using a t-test are satisfied.
a. Why was a two-sample t-test used instead of a paired t-test?
b. Which sample mean is larger? How do you know?
c. Write the conclusion for the hypothesis test.
Transcribed Image Text:
Two sample T hypothesis test: P1: Mean of Body Temp where Gender="Female" P2 : Mean of Body Temp where Gender="Male" P1 - P2 : Difference between two means Họ : H1 - H2 = 0 HA : P1 - P2 * 0 (without pooled variances) Hypothesis test results: Difference Sample Diff. Std. Err. DF T-Stat P-value H1 - H2 0.28923077 0.12655395 127.5103 2.2854345 0.0239
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a A twosample ttest was used instead of a paired ttest because the data are not paired In a paired t...View the full answer
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Related Book For
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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