Exercise 1:A Buffalo, New York, cola distributor is featuring a special sale on 12-packs. She wonders wherein the grocery store to place the cola for maximum attention. Should it be near the front door ofthe grocery stores, in the cola section, at the checkout registers, or near the milk and other dairyproducts? Four stores with similar total sales cooperated in an experiment. In one store, the 12-packs were stacked near the front door, in another they were placed near the checkout registers,and so on. Sales were checked at specified times in each store for exactly four minutes. Theresults were:Cola at the DoorIn Soft Drink Section7$Near Registers6$Dairy Section12$9$11101110121012149.712The Buffalo distributor wants to find out whether there is a difference in the meansales for cola stacked at the four locations in the store. Use the .05 significance level.1. State the null and the alternate hypotheses.2. What is the decision rule?3. Find the ANOVA table.4. State your decision regarding the null hypothesis.5. Interpret the result.

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Answered: A Buffalo, New York, cola distributor…

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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In a public opinion survey, 60 out of a sample of 100 high-income voters and 40 out of a sample of 75 low-income voters supported a decrease in value-added tax, VAT. Conclude at the 5% level of significance that the population of voters favouring a VAT decrease differs between high- and low-income voters. (Where p1 is the proportion of all high-income voters who supported a decrease in VAT; p2 is the same for the low-income voters). The rejection region to test the above hypothesis at the 5% significance level is: A. T < - 1.96 B. T < - 1.96 or Z > 1.64 C. Z< - 1.96 or Z > 1.96 D. Z < -1.64
In a public opinion survey, 60 out of a sample of 100 high-income voters and 40 out of a sample of 75 low-income voters supported a decrease in value-added tax, VAT. Conclude at the 5% level of significance that the population of voters favouring a VAT decrease differs between high- and low-income voters. (Where p1 is the proportion of all high-income voters who supported a decrease in VAT; p2 is the same for the low-income voters). The hypotheses are: A. H0: p1 - p2 = 0 vs H1: P1 - p2 ≠ 0 B. H0: p1 - p2 > 0 vs H1- P1 - p2 < 0 C. H0: p1 - p2 > 0 vs H1: P1 - p2 ≠ 0 D. H0: p1 - p2 ≠ 0 vs H1: P1 - p2 = 0 E. None of the preceding
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