Mathematics, 28.11.2019 03:31 KhloodAhmed
Suppose the weights of seventh‑graders at a certain school vary according to a normal distribution, with a mean of 100 pounds and a standard deviation of 7.5 pounds. a researcher believes the average weight has decreased since the implementation of a new breakfast and lunch program at the school. she finds, in a random sample of 35 students, an average weight of 98 pounds. what is the p ‑value for an appropriate hypothesis test of the researcher’s claim?
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Suppose the weights of seventh‑graders at a certain school vary according to a normal distribution,...
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