stat q5

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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