Questions from Statistics Principles

Q: The Gallup Organization contacts 1028 teenagers who are 13 to 17 years

The Gallup Organization contacts 1028 teenagers who are 13 to 17 years of age and live in the United States and asks whether or not they had been prescribed medications for any mental disorders, such...

Q: Match the histograms shown to the summary statistics: /

Match the histograms shown to the summary statistics:

Q: The data in the next column represent exam scores in a statistics

The data in the next column represent exam scores in a statistics class taught using traditional lecture and a class taught using a “flipped” classroom. The “flipped” classroom is one where the conten...

Q: The acidity or alkalinity of a solution is measured using pH.

The acidity or alkalinity of a solution is measured using pH. A pH less than 7 is acidic; a pH greater than 7 is alkaline. The following data represent the pH in samples of bottled water and tap water...

Q: The following data represent the pulse rates (beats per minute)

The following data represent the pulse rates (beats per minute) of nine students enrolled in a section of Sullivan’s Introductory Statistics course. Treat the nine students as a population. (a) Determ...

Q: The data on the next page represent the travel time (in

The data on the next page represent the travel time (in minutes) to school for nine students enrolled in Sullivan’s College Algebra course. Treat the nine students as a population. (a) Determine the p...

Q: A histogram of the download time of a movie, in minutes

A histogram of the download time of a movie, in minutes, for 30 randomly selected movies is shown. The mean download time is 39.007 minutes and the median download time is 39.065 minutes. Identify the...

Q: A histogram of the annual subscription cost (in dollars) for

A histogram of the annual subscription cost (in dollars) for 26 biology journals is shown. The mean subscription cost is $1846 and the median subscription cost is $1142. Identify the shape of the dist...

Q: The following data represent the weights (in grams) of a

The following data represent the weights (in grams) of a simple random sample of 50 M&M plain candies. Determine the shape of the distribution of weights of M&Ms by drawing a frequency histogram. Find...

Q: We have all heard of the Old Faithful geyser in Yellowstone National

We have all heard of the Old Faithful geyser in Yellowstone National Park. However, there is another, less famous, Old Faithful geyser in Calistoga, California. The following data represent the length...