Question 1

You perform a t-test to determine whether body weight differs between men and women, on average. This is an example of a ________-tailed test.

Group of answer choices

One

Two

Question 2

You are trying to determine whether body weight differs between men and women and collect samples of 40 men and 38 women from a population. You perform Kolmogorov-Smirnov tests (men, p=0.067; women, p=0.032) and a Levene's test (p=0.024) on your data. You should analyze your data using __________.

Group of answer choices

an uncorrected independent-samples T test

a Welch-corrected independent-samples T test

something other than an independent-samples T test

Question 3

You are trying to determine whether marathon performance differs between college students (18-22 yr) and young adults (25-30 yr) and collect samples of size n=40 of each from a population. You perform Kolmogorov-Smirnov tests (college students, p=0.067; young adults, p=0.032) and a Levene's test (p=0.084) on your data. You should analyze your data using __________.

Group of answer choices

an uncorrected independent-samples T test

a Welch-corrected independent-samples T test

something other than an independent-samples T test