EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Chapter 21.3, Problem 13E
Lawson’s Department Store faces a buying decision for a seasonal product for which demand can be high, medium, or low. The purchaser for Lawson’s can order 1, 2, or 3 lots of the product before the season begins but cannot reorder later. Profit projections (in thousands of dollars) are shown.
- a. If the prior probabilities for the three states of nature are .3, .3, and .4, respectively, what is the recommended order quantity?
- b. At each preseason sales meeting, the vice president of sales provides a personal opinion regarding potential demand for this product. Because of the vice president’s enthusiasm and optimistic nature, the predictions of market conditions have always been either “excellent” (E) or “very good” (V). Probabilities are as follows. What is the optimal decision strategy?
| P(E) = .7 | P(s1 | E ) = .34 | P(s1 | V ) = .20 |
| P(V) = .3 | P(s2 | E ) = .32 | P(s2 | V) = .26 |
| P(s3 | E) = .34 | P(s3 | V) = .54 |
- c. Compute EVPI and EVSI. Discuss whether the firm should consider a consulting expert who could provide independent forecasts of market conditions for the product.
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9.2 Testing the Mean mu:
Problem 3
(1 point)
Test the claim that the population of sophomore college
students has a mean grade point average greater than 2.2.
Sample statistics include n = 71, x = 2.44, and s = 0.9.
Use a significance level of a = 0.01.
The test statistic is
The P-Value is between :
The final conclusion is
< P-value <
A. There is sufficient evidence to support the claim that
the mean grade point average is greater than 2.2.
○ B. There is not sufficient evidence to support the claim
that the mean grade point average is greater than 2.2.
Note: You can earn partial credit on this problem.
Note: You are in the Reduced Scoring Period. All work counts for
50% of the original.
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Chapter 21 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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Ch. 21.3 - Hales TV Productions is considering producing a...Ch. 21.3 - Martins Service Station is considering entering...Ch. 21.3 - Lawsons Department Store faces a buying decision...Ch. 21.4 - Suppose that you are given a decision situation...Ch. 21.4 - In the following profit payoff table for a...Ch. 21.4 - To save on expenses, Rona and Jerry agreed to form...Ch. 21.4 - The Gorman Manufacturing Company must decide...Ch. 21 - An investor wants to select one of seven mutual...Ch. 21 - Warren Lloyd is interested in leasing a new car...Ch. 21 - Hemmingway, Inc. is considering a 50 million...Ch. 21 - Embassy Publishing Company received a six-chapter...Ch. 21 - Lawsuit Defense Strategy John Campbell, an...
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