Question

It has long been stated that the mean temperature of humans is 98.6degreesF. ​However, two researchers currently involved in the subject thought that the mean temperature of humans is less than 98.6degreesF. They measured the temperatures of 67 healthy adults 1 to 4 times daily for 3​ days, obtaining 300 measurements. The sample data resulted in a sample mean of 98.3degreesF and a sample standard deviation of 1degreesF. Use the​ P-value approach to conduct a hypothesis test to judge whether the mean temperature of humans is less than 98.6degreesF at the alphaequals0.01 level of significance. State the hypotheses. Upper H 0​: ▼ sigma p mu ▼ not equals equals less than greater than 98.6degreesF Upper H 1​: ▼ sigma mu p ▼ not equals equals greater than less than 98.6degreesF Find the test statistic. t 0equals nothing ​(Round to two decimal places as​ needed.) The​ P-value is nothing. ​(Round to three decimal places as​ needed.) What can be​ concluded? A. Do not reject Upper H 0 since the​ P-value is not less than the significance level. B. Do not reject Upper H 0 since the​ P-value is less than the significance level. C. Reject Upper H 0 since the​ P-value is less than the significance level. D. Reject Upper H 0 since the​ P-value is not less than the significance level.

Answer 1

C. Reject Upper H 0 since the​P-value is less than the significance level