- A Dietician Is Researching Two New Weight Gain Supplements That Have Just Hit The Market Ripped And Gainz She Wants To 1 (41.07 KiB) Viewed 24 times
A dietician is researching two new weight gain supplements that have just hit the market: Ripped and Gainz. She wants to determine if there is any difference between the two supplements in the mean amount of weight gained (in kg) by the people who take them The dietician tracks the total weight gain (in kg) over a year of a random sample of 14 people taking Ripped and a random sample of 12 people taking Gainz (These samples are chosen independently.) These data are shown in the table. Total weight gains (in kg) Ripped 9.6. 11:7, 13.1, 116, 78, 10.1, 90, 116, 15.5, 124,94, 116, 116, 132 Gainz 102, 102, 113, 10.9,92, 104, 8.5, 10.8, 10.1, 10.1, 95, 105 Send data to calculator Send data to Excel Assume that the two populations of weight gains are approximately normally distributed. Can the dietician conclude, at the 0.01 level of significance, that there is a difference between the population mean of the weight gained by people taking Ripped and the population mean of the weight gained by people taking Gainz? Perform a two-tailed test. Then complete the parts below Carry your intermediate computations to three or more decimal places. (If necessary, consultato formas.) (a) state the nut hypothesis and the alternate hypothesis o p HD 11,0 X 5 (b) Determine the type of test statistic to use (Choose one) D- USD 020 DO DO х 2 (c) Find the value of the test statistic (found to three or more decimal places.) 0 (d) Find the p-value (Round to three or more decimal places) 0 (e) At the 0.01 level of significance, can the dietician conclude that there is a difference between the mean weight gained by people talong Ripped and the mean weight gained by people taking Gaine? Yes No