You collect data on body weight of two strains of lab mice. A t-test is performed to test the hypothesis that the strains do not differ significantly in weight. Your calculated t value is 1.25 (test statistic). The degrees of freedom for this test are 14 and the critical value from thet distribution table is 2.045 (for an alpha/probability level of 0.05). Consequently, the results of your t test indicate: There is a significant difference in mean body weight between the two strains of mice ) The results of the test are ambiguous and no conclusion can be drawn There is no significant difference in mean body weight between the two strains of mice
You collect data on body weight of two strains of lab mice. A t-test is performed to test the hypothesis that the strains do not differ significantly in weight. Your calculated t value is 1.25 (test statistic). The degrees of freedom for this test are 14 and the critical value from thet distribution table is 2.045 (for an alpha/probability level of 0.05). Consequently, the results of your t test indicate: There is a significant difference in mean body weight between the two strains of mice ) The results of the test are ambiguous and no conclusion can be drawn There is no significant difference in mean body weight between the two strains of mice
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:You collect data on body weight of two strains of lab mice. A t-test is performed to
test the hypothesis that the strains do not differ significantly in weight. Your
calculated t value is 1.25 (test statistic). The degrees of freedom for this test are 14
and the critical value from the t distribution table is 2.045 (for an alpha/probability
level of 0.05). Consequently, the results of your t test indicate:
There is a significant difference in mean body weight between the two strains of
mice
O The results of the test are ambiguous and no conclusion can be drawn
There is no significant difference in mean body weight between the two strains
of mice
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