Question: On page 243, we presented a frequency distribution for data on chest circumference, in inches, for 5732 Scottish militiamen. As mentioned there, Adolphe Quetelet used
a. Construct a relative-frequency histogram for the chest circumference data, using classes based on a single value.
b. The population mean and population standard deviation of the chest circumferences are 39.85 and 2.07, respectively. Identify the normal curve that should be used for the chest circumferences.
c. Use the table on page 243 to find the percentage of militiamen in the survey with chest circumference between 36 and 41 inches, inclusive. Note: As the circumference were rounded to the nearest inch, you are actually finding the percentage of militiamen in the survey with chest circumference between 35.5 and 41.5 inches.
d. Use the normal curve you identified in part (b) to obtain an approximation to the percentage of militiamen in the survey with chest circumference between 35.5 and 41.5 inches. Compare your answer to the exact percentage found in part (c).
Step by Step Solution
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a First divide the frequency of each class by the sample size of 5732 to get the relative frequency ... View full answer
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