overweight people often become desperate because they different diets without success sara 0

Overweight people often become desperate because they different diets without success. Sara, a nutritionist wishes to test the efficiency of one –month diet program being undertaken by 7 candidates .she recorded their weights at the start and end of the program .the result is shown as bellow S.NO Before After 1 68 65.5 2 78 74.2 3 95 90.1 4 85 80.3 5 69 66.3 6 64 61.9 7 73 70.1 At α=0.02 to test the efficiency of the diet program. Assume normal distribution for the paired difference

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