madelynw4114
25.11.2019 •
Mathematics
Suppose we are testing people to see if the rate of use of seat belts has changed from a previous value of 88%. suppose that in our random sample of 500 people, we see that 450 have the seat belt fastened. (a) about how many of 500 would we expect to be using their seat belts if the proportion who use seat belts is unchanged?
(b) we observe 450 people out of a random sample of 500 using their seatbelt. the p-value is 0.167. explain the meaning of the p-value.
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Ответ:
none. there is no intercept please tell me if im wrong