Business Analytics
3rd Edition
ISBN: 9780135231715
Author: Evans
Publisher: PEARSON
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Chapter 5, Problem 37PE
In determining automobile mileage ratings, it was found that the mpg
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A psychology researcher conducted a Chi-Square Test of Independence to examine whether there is a relationship between college students’ year in school (Freshman, Sophomore, Junior, Senior) and their preferred coping strategy for academic stress (Problem-Focused, Emotion-Focused, Avoidance). The test yielded the following result:
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Interpret the results of this analysis. In your response, clearly explain:
Whether the result is statistically significant and why.
What this means about the relationship between year in school and coping strategy.
What the researcher should conclude based on these findings.
A school counselor is conducting a research study to examine whether there is a relationship between the number of times teenagers report vaping per week and their academic performance, measured by GPA. The counselor collects data from a sample of high school students. Write the null and alternative hypotheses for this study. Clearly state your hypotheses in terms of the correlation between vaping frequency and academic performance.
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Chapter 5 Solutions
Business Analytics
Ch. 5 - Lauren drinks a variety of soft drinks. Over the...Ch. 5 - A home improvement company in Cincinnati ran a...Ch. 5 - Consider the experiment of drawing two cards...Ch. 5 - Three coins are drop on a table. List all possible...Ch. 5 - A market research company surveyed consumers to...Ch. 5 - Refer to the card scenario described in Problem 3....Ch. 5 - Refer to the coin scenario described in Problem 4....Ch. 5 - Prob. 8PECh. 5 - Prob. 9PECh. 5 - An airline tracks data on its flight arrivals....
Ch. 5 - A survey of 200 college graduates who have been...Ch. 5 - Prob. 12PECh. 5 - A survey of shopping habits found the percentage...Ch. 5 - A Canadian business school summarized the gender...Ch. 5 - Prob. 15PECh. 5 - Use the Civilian Labor Force data in the Excel...Ch. 5 - Prob. 17PECh. 5 - A home pregnancy test is not always accurate....Ch. 5 - In the scenario in Problem 3, what is the...Ch. 5 - In the roulette example described in Problem 8,...Ch. 5 - Prob. 21PECh. 5 - An investor estimates that there is a 1in10 chance...Ch. 5 - The weekly demand of a slow-moving product has the...Ch. 5 - Construct the probability distribution for the...Ch. 5 - Based on the data in the Excel file Consumer...Ch. 5 - A major application of analytics in marketing is...Ch. 5 - The Excel file Call Center Data shows that in a...Ch. 5 - If a cell phone company conducted a telemarketing...Ch. 5 - During one year, a particular mutual fund...Ch. 5 - A popular resort hotel has 300 rooms and is...Ch. 5 - A telephone call center where people place...Ch. 5 - A financial consultant has an average of eight...Ch. 5 - The number and frequency of Atlantic hurricanes...Ch. 5 - Prob. 34PECh. 5 - Prob. 35PECh. 5 - Prob. 36PECh. 5 - In determining automobile mileage ratings, it was...Ch. 5 - The distribution of SAT scores in math for an...Ch. 5 - A popular soft drink is sold in 2-liter...Ch. 5 - A supplier contract calls for a key dimension of a...Ch. 5 - Historical data show that customers who download...Ch. 5 - A lightbulb is warranted to last for 5,000 hours....Ch. 5 - The actual delivery time from Giodannis Pizza is...Ch. 5 - Apply the chi-square goodness of fit test to the...Ch. 5 - Apply the chi-square goodness of fit test to the...Ch. 5 - Compute the daily change of the closing price for...
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