Use the information given in the following paragraph to answer the ne An online

Question

Use the information given in the following paragraph to answer the ne An online retailer of nutritional supplements and vitamins claims a new n aid and sl xt four questions. elatonin product can supprt more sleep hours. 7 subjects are random selected to try the supplements and their cep hours are measured both before and after the usage. The results of the study are as follows. er the questions for testing the belief that this supplement prolongs sleep. t-Test: Paired Two Sample for Means Before Usage Afterusage_ 6.142857143 7.142857143 3.80952381 1.476190476 Mean Variance Observations Pearson Correlation Hypothesized Mean Difference df t Stat P(T t) one-tail t Critical one-tail P(T

Explanation / Answer

Use the information given in the following paragraph to answer the ne An online retailer of nutritional supplements and vitamins claims a new n aid and sl xt four questions. elatonin product can supprt more sleep hours. 7 subjects are random selected to try the supplements and their cep hours are measured both before and after the usage. The results of the study are as follows. er the questions for testing the belief that this supplement prolongs sleep. t-Test: Paired Two Sample for Means Before Usage Afterusage_ 6.142857143 7.142857143 3.80952381 1.476190476 Mean Variance Observations Pearson Correlation Hypothesized Mean Difference df t Stat P(T t) one-tail t Critical one-tail P(T

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