BUSI 230 HW 2.3 More Graphs for Quantitative Data Assignment solutions complete answers
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Select the appropriate word or phrase to complete each sentence.
In a stem-and-leaf plot, the rightmost digit of each data value is the .
In a back-to-back stem-and-leaf plot, each of the two data sets plotted must have the same .
is useful when the data consist of values measured at different points in time.
How's the weather? The following table presents the daily high temperatures for the city of Macon, Georgia, in degrees Farenheit, for the winter months of January and February in a recent year.
Construct a stem-and-leaf plot, using the digits 4, 5, 6, and 7 as the stems. Do not separate the answers with a comma. If there are no leaves, select the "None" button.
Tennis and golf: Following are the ages of the winners of the men's Wimbledon tennis championship and the Master's golf championship for selected years.
(a) Construct back-to-back split stem-and-leaf plots for these data sets, in which each stem appears twice, once for leaves - and again for leaves -. Do not separate the answers with commas. If there are no leaves on a particular stem, select the "None" button.
(b) How do the ages of Wimbledon champions differ from the ages of Master's champions?
More weather: The following table presents the daily high temperatures for the city of Macon, Georgia, in degrees Fahrenheit, for the winter months of January and February in a recent year.
(a) Construct a dotplot for these data.
(b) Are there any gaps in the data?
Safety first: Following are the numbers of hospitals in each of the U.S. states plus the District of Columbia that won Patient Safety Excellence Awards.
(a) Construct a dotplot for these data.
(b) Describe the shape of the dotplot.
Looking for a job: The following table presents a country's unemployment rate for each of the years through .
(a) Construct a time-series plot of the unemployment rate.
(b) For which periods of time was the unemployment rate increasing? For which periods was it decreasing?
Arctic ice sheet: The following time-series plot presents the extent of ice coverage (in millions of square kilometers) in the Arctic region in September of each year from through .
(a) What was the first year that the coverage dropped below 5 million square kilometers?
(b) What was the first year that the coverage dropped below 4 million square kilometers?
