Part 1 of 2 Dr. Price is interested in examining whether there are significant d
ID: 3056934 • Letter: P
Question
Part 1 of 2 Dr. Price is interested in examining whether there are significant differences in the number of minutes males and females spend exercising per week. Dr. Price samples a group of 30 adults, 15 males and 15 females, and has each participant report the number of minutes they spent exercising the previous week. Dr. Price thinks there will be a difference between the two groups, she is just unsure what the difference will be (eg. men will be higher, women will be higher, she doesnt know?m Based on this research scenario, answer the questions on this page... Question 1 of 15 1.0 Points What is the sample? CA College students B. Adult males and females C. 15 adult males and 15 adult females O D. People Question 2 of 15 1.0 Points What type of variable is number of minutes spent exercising? 0 A Nominal B. Ordina C. Interval D. RatioExplanation / Answer
5)
Null hypothesis : mumales = mufemales
Option A)
6)
Alternative hypothesis : mumales not equal to mufemales
Option A)
7)
Dependent samples t test
The dependent t-test (also called the paired t-test or paired-samples t-test) compares the means of two related groups to determine whether there is a statistically significant difference between these means.
8)
Two tailed because alternative hypothesis is not equal to mean
9)
We reject the null hypothesis because critical value is +/-2.048 which is t > 2.048