Price cuts (4.2) Stores advertise price reductions to attract customers. What type of pricecut is most attractive? Experiments with more than one factor allow insight intointeractions between the factors. A study of the attractiveness of advertised price discountshad two factors: percent of all foods on sale (25%, 50%, 75%, or 100%) and whether thediscount was stated precisely (e.g., as in “60% off”) or as a range (as in "40% to 70%off"). Subjects rated the attractiveness of the sale on a scale of 1 to 7.a. List the treatments for this experiment, assuming researchers will use all combinationsof the two factors.b. Describe how you would randomly assign 200 volunteer subjects to treatments.c. Explain the purpose of the random assignment in part (b).d. The figure shows the mean ratings for the eight treatments formed from the twofactors. Based on these results, write a careful description of how percent on sale andprecise discount versus range of discounts influence the attractiveness of a sale.Mean attractiveness score52125PreciseRange5075Percent of goods on sale100

Given information: The attractiveness of advertised price discount has two factors, the percent of…

Answered: Price cuts (4.2) Stores advertise price…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Example 3. A certain company's customers is made up of 43% women and 57% men. An aggressive marketing campaign results in an increase of women customers to 46%, according to a sample survey of 50 customers. If the company hadn't run the campaign, how likely is it that 46% of customers are women? Was the campaign worth it? 0.46-0.43
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Determine whether the study depicts an observational study or an experiment. A scientist was studying the effects of a new fertilizer on crop yield. She randomly assigned half of the plots on a farm to group one and the remaining plots to group two. On the plots in group one, the new fertilizer was used for a year. On the plots in group two, the old fertilizer was used. At the end of the year the average crop yield for the plots in group one was compared with the average crop yield for the plots in group two.
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12. Library: Book Circulation The director of library services at Fairmont College did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown next. Percent of Books in Circulation Library on This Subject Number of Books in Subject Area Sample on This Subject Business 32% 268 Humanities 25% 214 Natural science 20% 215 Social science 15% 115 All other subjects 8% 76 Using a 5% level of significance, test the claim that the subject distribu- tion of books in the library fits the distribution of books checked out by students.

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