Reference no: EM133012592

Problem 1: A sports scientist is researching whether there is a difference in the resting pulse rates of men and women. She gathers data on 196 men and 209 women, by measuring their 30 second pulse rate and doubling it to get their 60 second pulse rate. Assume that the 60 second pulse rates for both populations are normally distributed. What are the appropriate null and alternative hypotheses, if ??1μ1 = population average resting pulse rate of men and ??2μ2= population average resting pulse rate of women?

Select one:

a. ??0:??1-??2=0H0:μ1-μ2=0 and ????:??1-??2>0Ha:μ1-μ2>0

b. ??0:??1-??2=0H0:μ1-μ2=0 and ????:??1-??2≠0Ha:μ1-μ2≠0

c. ??0:??1-??2=0H0:μ1-μ2=0 and ????:??1-??2<0Ha:μ1-μ2<0

d. ??0:??1-??2≠0H0:μ1-μ2≠0 and ????:??1-??2=0Ha:μ1-μ2=0