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Question
Assume that 10 people join a weight loss program for 3 months. Each person's weight both before and after the program is recorded and the number of pounds each person lost is found. The following summarizes the results for the 10 people:
Mean weight lost = 9 pounds
Sample standard deviation of weight lost = 4.6 pounds
Assume that the hypothesis test will be conducted to determine whether or not the weight loss program is effective using a 0.05 level of significance. What is the value of the test statistic?
A) t = 6.19
B) t = 1.96
C) z = 1.96
D) z = 6.19
Answer
This answer is hidden. It contains 10 characters.
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