Question

In: Statistics and Probability

A researcher is interested in studying if males and females have the same attitude toward abortion....

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

Test the hypothesis that there is a significant difference in average scores in attitude on abortion scale by gender? (set a=.05)

Which of the following assumptions is NOT required for this test?

a) The independent variable for this test must be a nominal variable with at least three categories.

b) The dependent variable for this test must be an interval or ratio variable.

c)Both samples must be independent random samples.

d) Both populations are required to be normal distributions.

Solutions

Expert Solution

since this is independent sample t test

The dependent variable for this test must be an interval or ratio variable

this assumption is not required for this test.

orchestra answered 2 years ago
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