Question

someone please help me with my last question

Answer 1

post your question

Answer 2

Erin wants to know if warming up will help runners sprint faster. Twenty-six track and field athletes volunteered to participate in her study. She randomly assigns 13 athletes to warm-up for 10 minutes. All 26 participants sprint the same distance. She calculates the mean for each group and determines that the mean for the warm-up group was 10.9 seconds and the mean for the other group was 13.9 seconds. To test the difference of means, she re-randomized the data 250 times and the differences are plotted in the dot plot below. What can Erin conclude from her study?

Answer 3

a. The difference in the means is not significant because a difference of 3 is not very likely.

b. The difference in the means is not significant because a difference of 3 is very likely.

c. The difference in the means is significant because a difference of 3 is very likely.

d. The difference in the means is significant because a difference of 3 is not very likely.

These are the choices

Answer 4

@acxbox22

Answer 5

@woohoo @mathmale