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  3. case study: chest sizes of scottish militiamen (p.

CASE STUDY: Chest Sizes of Scottish Militiamen (p. 306): Chest Size Frequency 33 3 34 19 35 81 36 189 37 409 38 753 39 1062 40 1082 41 935 42 646 43 313 44 168 45 50 46 18 47 3 48 1 The population mean and population standard deviation of...

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Question

Statistics

CASE STUDY: Chest Sizes of ScottishMilitiamen (p. 306):

Chest Size

Frequency

33

3

34

19

35

81

36

189

37

409

38

753

39

1062

40

1082

41

935

42

646

43

313

44

168

45

50

46

18

47

3

48

1

  1. The population mean and population standard deviationof the chest circumferences are 39.85 and 2.07, respectively,identify the normal curve that should be used for the chestcircumferences
  2. Use the table above to find the percentage ofmilitiamen in the survey with chest circumference between 36 and 41inches, inclusive. Note: as the circumferences were rounded to thenearest inch, you are actually finding the percentage of militiamenin the survey with chest circumference between 35.5 and 41.5inches
  3. Use the normal curve you identified in part (a) toobtain an approximation to the percentage of militiamen in thesurvey with chest circumference between 35.5 and 41.5 inches.Compare your answer to the exact percentage found in part(b).

Answer & Explanation Solved by verified expert
3.8 Ratings (568 Votes)
SolutionaSo the normal curve we can use is Normal 3985207bNumber of militiamen with chest circumference between 36 and 41inches is NN 189 409 753 1062 1082 935 4430Total    See Answer
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