Given two dependent random samples with the following results:

Population 144

44

38

38

42

42

37

37

33

33

38

38

27

27

Population 232

32

35

35

49

49

41

41

43

43

26

26

35

35

Use this data to find the98%

98

%

confidence interval for the true difference between the population means.

Letd=(Population1entry)(Population2entry)

d

=

(Population1entry)

(Population2entry)

. Assume that both populations are normally distributed.

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Step 3 of 4:Find the standard deviation of the paired differences to be used in constructing the confidence interval. Round your answer to one decimal place.