Mathematics, 13.01.2020 19:31 scholarlystudenttt28
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 would the p? value tell the researcher in this situation?
a.) the probability that a random sample of students would have a mean of 100 pounds, if the true population mean is 98 pounds
b.) the probability that a random sample of students would have a mean of 98 pounds, if the true population mean is 100 pounds
c.)the probability that a random sample of students would have a mean less than or equal to 100 pounds, if the true population mean is 98 pounds
d.)the probability that a random sample of students would have a mean less than or equal to 98 pounds, if the true population mean is 100 pounds
Answers: 1
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Suppose the weights of seventh? graders at a certain school vary according to a normal distribution,...
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