A researcher is interested in studying if males and females have the same attitude toward abortion. Attitude toward abortion is measured by a scale, ranging from 1 to 10. A high score indicates strong opposition to abortion under any circumstances. Descriptive statistics obtained from random samples of male and female populations are presented below. Male: Female: n1=11 n2=20 x1=6.2 x2=4.5 s1=1.6 s2=1.8 Perform the F test to determine if there is a significant difference between male and female population standard deviations(set a=.05) Which of the following statements is false? a) The test statistics for the F test is 1.27 b) The critical value for the F test is 2.77 c) The conclusion of the F test is accepting Ho: o-1=o-2 d) The conclusion is accepting Ha: o-1=/ o-2
Added by Brittany W.
Step 1
The F test statistic is the ratio of the two sample variances, which is (s1^2 / s2^2) = (1.6^2 / 1.8^2) = 0.79. So, statement a) is false because the test statistic for the F test is not 1.27, it's 0.79. Show more…
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