statistics

A researcher was interested in assessing the effectiveness of the Statistics Diet as
compared to a regular low calorie diet on weight loss. In the study, obese participants were
randomly assigned to one of two groups: (1) the Statistics Diet, which required participants
to calculate the mean number of calories in each food that they ate at every meal or (2) the
Regular Low Calorie Diet, which had participants consume only 1000 calories a day. The
dependent/response measure collected was the number of pounds lost at the end of the
first week of the diet. The following table contains the results of the study.
#ofParticipnts Mean Stndard Dev
Stats Diet 6 2.3 0.55
Reg Low Cal Diet 6 1.23 0.5
What is the value of the test statistic?
a. 3.53
b. -3.53
c. 11.62
d. -11.62

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asked by Matt

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