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It is claimed that a new diet will reduce a person’s weight by 4.5 kilograms, on average, in a period of 2 weeks. The weights of 10 women were recorded before and after a 2-week period during which...

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It is claimed that a new diet will reduce a person’s weight by 4.5 kilograms, on average, in a period of 2 weeks. The weights of 10 women were recorded before and after a 2-week period during which they followed this diet, yielding the following data:

Woman

Weight Before

Weight After

1

58.5

60.0

2

60.3

54.9

3

61.7

58.1

4

69.0

62.1

5

64.0

58.5

6

62.6

59.9

7

56.7

54.4

8

63.6

60.2

9

68.2

62.3

10

59.4

58.7

Use the sign test at the 0.05 level of significance to test the hypothesis that the diet reduces the median weight by 4.5 kilograms against the alternative hypothesis that the median weight loss is less than 4.5 kilograms.

Answered Same Day Dec 24, 2021

Solution

David answered on Dec 24 2021
115 Votes
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