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Chapter 1: Q. 83 (page 57)
How much time does it take to travel to work? Table shows the mean commute time by state for workers at least years old who are not working at home. Find the mean travel time, and round off the answer properly.
The mean travel time is.
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For the following four exercises, determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
The first 50 people who walk into a sporting event are polled on their television preferences.
For the following exercises, identify the type of data that would be used to describe a response (quantitative discrete, quantitative continuous, or qualitative), and give an example of the data. . distance to the closest movie theatre
Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the academic year. Highlights of the summary report are listed in Table
a. What percent of the students surveyed do not have a computer at home?
b. About how many students in the survey live at least 16 miles from campus?
c. If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be the same? Why?
Use the following information to answer the next two exercises: Table contains data on hurricanes that have made direct hits on the U.S. Between and . A hurricane is given a strength category rating based on the minimum wind speed generated by the storm.
What is the relative frequency of direct hits that were category 4 hurricanes?
a.
b.
c.
d. Not enough information to calculate
YouPolls is a website that allows anyone to create and respond to polls. One question posted April asks:
鈥淒o you feel happy paying your taxes when members of the Obama administration are allowed to ignore their tax liabilities?鈥�
As of April people responded to this question. Each participant answered 鈥淣O!鈥�
Which of the potential problems with samples discussed in this module could explain this connection?
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