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his Question: 1 pt 26 of 32 This Test: A certain marathon has had a wheelchair d

ID: 2949902 • Letter: H

Question

his Question: 1 pt 26 of 32 This Test: A certain marathon has had a wheelchair division since 1977. An interested fan wondered who is faster: the men's marathon winner or the women's wheelchair marathon winner, on average. A paired t-test was performed, and the p-value was found to be 0.001. Which of the following is the correct conclusion? Choose the correct answer below. O A. There is not sufficient evidence to indicate that the average difference between men's winning running O B. There is sufficient evidence to indicate that the average difference between men's winning running time ° C. There is not sufficient evidence t O D. There is sufficient evidence to indicate that the average women's winning wheelchair time is different 0 E. There is sufficient evidence to indicate that the men's running winning time and the women's wheelchair time and women's winning wheelchair time is not 0. and women's winning wheelchair time is 0. men's winning running time, on average. than the average men's winning running time. winning time each year are different, on average o indicate that the women's winning wheelchair time is different than the

Explanation / Answer

Since p - value is very small, we reject the null hypothesis and conclude that the difference is significant.

Hence,

Option D is correct.