Chapter 3: Descriptive Measures
Q. 3.168
In the article "Grandchildren Raised by Grandparents, a Troubling Trend" M. Blackburn considered the rates of children (under \(18\) years of age) living in California with grandparents as their primary caretakers. A sample of \(14\) California countries yielded the following percentages of children under \(18\) living with grandparents.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range
c. find and interpret the five-number summary
d. identify potential outliers, if any
e. construct and interpret a boxplot.
Q 3.169
Hospital Stays. The U.S. National Center for Health Statistics compiles data on the length of stay by patients in short-term hospitals and publishes its findings in Vital and Health Statistics, A random sample of 21 patients yielded the following data on length of stay, in days.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary:
d. identify potential outliers, if am:
e. construct and interpret a boxplot.
Q 3.17.
Consider these sample data:
a) Find role="math" localid="1650821862719"
b) Compute role="math" localid="1650822690845"
c) Determine.
Q 3.170
Miles Driven. The U.S. Federal Highway Administration conducts studies on motor vehicle travel by type of vehicle. Results are published annually in Highway Stutisties. A sample of 15 cars yields the following data on number of miles driven, in thousands, for last year.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary:
d. identify potential outliers, if am:
e. construct and interpret a boxplot.
Q.3.170
Miles Driven. The U.S Federal Highway Administration conducts studies on motor vehicle travel by type of vehicle. Results are published annually in highway statistics. A sample of 15 cars yield the following data on number of miles driven, in thousands, for last year.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five number summary.
d. identify potential outliers, if any
e. construct and interpret a boxplot.
Q 3.172
Sky Guide. The publication California Wild: Natural Sciences for Thinking Animals has a monthly feature called the "Sky Guide" that keeps track of the sunrise and sunset on the first day of each month in San Francisco. Over several issues. B. Quock from the Morrison Planetarium recorded the following sunrise times from July 1 of one year through June 1 of the next year. The times are given in minutes past midnight.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary.
d. identify potential outliers, if am:
e. construct and interpret a boxplot.
Q. 3.172
In below exercise:
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary.
d. identify potential outliers, if any:
e. construct and interpret a boxplot.
The publication California Wild. Natural Sciences for Thinking Animals has monthly features called the "Sky Guide" that keeps track of the sunrise and sunset for the first day of each month in San Franciso. Over several issues, B. Quock from the Morrison Planetarium recorded the following sunrise times from July 1 of one year through June 1 of the next year. The times are given in minutes past midnight.
Q 3.173
Capital Spending. An issue of the Brokerage Report discussed the capital spending of telecommunications companies in the United States and Canada. The capital spending, in thousands of dollars, for each of the 27 telecommunications companies is shown in the following table.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary.
d. identify potential outliers, if am:
e. construct and interpret a boxplot.
Q. 3.173
In given exercise.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five-number summary.
d. identify potential outliers, if any:
e. construct and interpret a boxplot.
An issue of Brokerage Report discussed the capital spending of telecommunications companies in the United States and Canada. The capital spending in thousands of dollars for each of telecommunications companies is shown in the following table.
Q. 3.174
Medieval Cremation Burials. In the article "Material Culture as Memory: Combs and Cremations in Early Medieval Britain" (Early Medieval Europe, Vol. . Issue . pp. ), H. Williams discussed the frequency of cremation burials found in archaeological sites in eastern England. Here are the data.
a. obtain and interpret the quartiles.
b. determine and interpret the interquartile range.
c. find and interpret the five number summary.
d. identify potential outliers, if any
e. construct and interpret a boxplot.
