Basic Business Statistics, Student Value Edition
14th Edition
ISBN: 9780134685113
Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 2PS
Business actively recruit business student with well-developed higher-order cognitive skills (HOCS) such as problem identification, analytical reasoning, and content integration skills. Researchers conducted a study to see if improvement in students ‘HOCS was related to the students’ GPA.
The researchers conducted a study in which business students were taught using the case study method. Using study method. Using data collected from 300 business students, the following
Where the dependent variables HOCS measured the improvement in higher-order cognitive skills, with 1 being the lowest Improvement in HOCS and 5 being the highest improvement in HOCS.
a. Construct a table of predicted HOCS, using GPA equal to 2.0,2.1,2.2, …,4.0.
b. Plot the values in the table constructed in (a), with GPA on the horizontal axis and predicted HOCS on the vertical axis.
c. Discuss the curvilinear relationship between students’ GPA and their predicted improvement in HOCS.
d. The researchers reported that the model had an
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Researchers conducted a study to see if improvement in students' higher-order cognitive skills (HOCS) was related to the students' GPA. Using data collected from 300 business students, the quadratic regression equation,
HOCS=−3.44+4.56(GPA)−0.67(GPA)2
was derived, where the dependent variable HOCS measured the improvement in higher-order cognitive skills, with 1 being the lowest improvement in HOCS and 5 being the highest improvement in HOCS.
A. Construct a table of predicted HOCS, using GPA equal to 2.0, 2.25, 2.5, ..., 4.0.
Round to three decimal places as needed.
A biologist wants to predict the height of male giraffes, y, in feet, given their age, x1, in years, weight, x2, in pounds, and neck length, x3, in feet. She obtains the multiple regression equation yˆ=7.36+0.00895x1+0.000426x2+0.913x3. Predict the height of a 12-year-old giraffe that weighs 3,100 pounds and has a 7-foot-long neck, rounding to the nearest foot.
Researchers wanted to investigate the relationship between employment and accommodation capacity in a continent's tourism and travel industry. The data table contains a sample of 27 countries in the continent. Variables included in the number of jobs generates in the travel and tourism industry (in thousands) in 2012 and the number of establishments that provide overnight accommodation for tourists (in thousands).
b. Fit a quadratic regression model to predict the number of jobs generated and state the quadratic regression equation.
Chapter 15 Solutions
Basic Business Statistics, Student Value Edition
Ch. 15 - The following is the quadratic regression equation...Ch. 15 - Business actively recruit business student with...Ch. 15 - A study was conducted on automobile engines to...Ch. 15 - Prob. 4PSCh. 15 - In the production of printed circuit boards,...Ch. 15 - An automotive sales manager wishes to examine the...Ch. 15 - Researchers wanted to investigate the relationship...Ch. 15 - Prob. 8PSCh. 15 - Prob. 9PSCh. 15 - Prob. 10PS
Ch. 15 - Using the data of Problem 15.4 on page 600, stored...Ch. 15 - Using the data of Problem 15.6 on page 601, stored...Ch. 15 - Using the data of Problem 15.6 on page 601 stored...Ch. 15 - If the coefficient of determination between two...Ch. 15 - If the coefficient of determination between two...Ch. 15 - Prob. 16PSCh. 15 - Refer to Problem 14.5 on page 542. Perform a...Ch. 15 - Refer to Problem 14.6 on page 542. Perform a...Ch. 15 - Refer to Problem 14.7 on page 542. Perform a...Ch. 15 - Refer to Problem 14.8 on page 542. Perform a...Ch. 15 - Prob. 21PSCh. 15 - Prob. 22PSCh. 15 - Prob. 23PSCh. 15 - You need to develop a model to predict the asking...Ch. 15 - Accounting Today identified top public accounting...Ch. 15 - How can you evaluate whether collinearity exists...Ch. 15 - Prob. 27PSCh. 15 - Prob. 28PSCh. 15 - A Specialist in baseball analytics has expanded...Ch. 15 - In the production of printed circuit boards,...Ch. 15 - Hemlock Farms is a community located in the Pocono...Ch. 15 - Prob. 32PSCh. 15 - Prob. 33PSCh. 15 - Prob. 34PSCh. 15 - You are a real estate broker who wants to compare...Ch. 15 - You are a real estate broker who wants to compare...Ch. 15 - Financial analysts engage in business valuation to...Ch. 15 - Prob. 38PSCh. 15 - A molding machine that contains different cavities...Ch. 15 - The file Cites contains a sample of 25 cities in...Ch. 15 - In problem 15.32-15.36 you developed multiple...
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