Business Analytics (2nd Edition)
2nd Edition
ISBN: 9780321997821
Author: James R. Evans
Publisher: PEARSON
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Chapter 3, Problem 7PE
The Excel file Internet Usage provides data about users of the Internet. Construct stacked bar charts that will allow you to compare any differences due to age or educational attainment and draw any conclusions that you can. Would another type of charts be more appropriate?
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Test d'égalité des espérances: observations pairées
A television news channel samples 25 gas stations from its local area and uses the results to estimate the average gas price for the state. What’s wrong with its margin of error?
You’re fed up with keeping Fido locked inside, so you conduct a mail survey to find out people’s opinions on the new dog barking ordinance in a certain city. Of the 10,000 people who receive surveys, 1,000 respond, and only 80 are in favor of it. You calculate the margin of error to be 1.2 percent. Explain why this reported margin of error is misleading.
Chapter 3 Solutions
Business Analytics (2nd Edition)
Ch. 3 - Create a line chart for the closing prices for all...Ch. 3 - Create a pie chart showing the breakdown of...Ch. 3 - The Excel tile Facebook Survey provides data...Ch. 3 - A national homebuilder builds single-family homes...Ch. 3 - Create a bubble chart for the first five colleges...Ch. 3 - Construct a column chart for the data in the Excel...Ch. 3 - The Excel file Internet Usage provides data about...Ch. 3 - Construct an appropriate chart to show the...Ch. 3 - In the Excel file Banking Data, apply the...Ch. 3 - Apply three different colors of data bars to...
Ch. 3 - For the Store and Regional Sales database, apply a...Ch. 3 - For the Excel file Closing Stock Prices, Apply...Ch. 3 - Convert the Store and Regional Sales database to...Ch. 3 - Prob. 14PECh. 3 - Prob. 15PECh. 3 - Prob. 16PECh. 3 - Prob. 17PECh. 3 - In the Purchase Orders database, conduct a Pareto...Ch. 3 - Use Excels filtering capability to (1) extract all...Ch. 3 - Prob. 20PECh. 3 - The Excel file Credit Risk Date Provides...Ch. 3 - Prob. 22PECh. 3 - Prob. 23PECh. 3 - A community health-status survey obtained the...Ch. 3 - Prob. 25PECh. 3 - Prob. 26PECh. 3 - Prob. 27PECh. 3 - Prob. 28PECh. 3 - Prob. 29PECh. 3 - Prob. 30PECh. 3 - Find the 10th and 90th percentiles and 1st, 2nd,...Ch. 3 - Construct cross-tabulations of Gender versus...Ch. 3 - Use PivotTables to construct a cross-tabulation...Ch. 3 - Use PivotTables to construct a cross-tabulation...Ch. 3 - Create a PivotTable to find the average amount of...Ch. 3 - Use PivotTables to find the number of loans by...Ch. 3 - Use PivotTables to find the number of sales...Ch. 3 - Create a PivotTable for the data in the Excel file...Ch. 3 - The Excel File Rins Gym provides sample data on...Ch. 3 - Create useful dashboards for each of the following...Ch. 3 - A marketing researcher surveyed 92 individuals,...
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