A psychologist has designed a psychotherapy programme for people suffering from obesity, and wanted to determine what the mean weight loss would be for a population of people with obesity following the programme. The weight loss in kilograms, of 13 people who suffered with obesity and participated in the programme were randomly selected and the results were as follows: 21.4 23.1 25.9 24.7 23.4 24.5 21.9 25.0 22.5 29.9 29.4 25.8 23.2   Question 14 Calculate the standard deviation for the weight loss data set (rounded off to four decimals).

Question

A psychologist has designed a psychotherapy programme for people suffering from obesity, and wanted to determine what the mean weight loss would be for a population of people with obesity following the programme. The weight loss in kilograms, of 13 people who suffered with obesity and participated in the programme were randomly selected and the results were as follows:

21.4 23.1 25.9 24.7 23.4 24.5 21.9
25.0 22.5 29.9 29.4 25.8 23.2

 

Question 14
Calculate the standard deviation for the weight loss data set (rounded off to four decimals).

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