The management of a chain grocery store wanted to compare the effect of three different types of advertising strategy on mean sales of its chain store. In order to conduct the study, 12 chain stores were randomly selected and divided into three groups of four stores. Strategy 1 was used in four stores, strategy 2 in four others, and strategy 3 in the remaining four stores. The allocation of strategy to stores was made randomly. The amount of sales (in RM 000's) during a month at each of the twelve stores were recorded. It is known that the monthly sales in all stores are approximately normally distributed. The table shown below reports the sales information. Strategy III (prizes for purchases above certain amount) Strategy I (Voucher) Strategy II (Discounts) Observation 1 96 135 160 Observation 2 129 131 150 Observation 3 135 129 148

The management of a chain grocery store wanted to compare the effect of three different types of advertising strategy on mean sales of its chain store. In order to conduct the study, 12 chain stores were randomly selected and divided into three groups of four stores. Strategy 1 was used in four stores, strategy 2 in four others, and strategy 3 in the remaining four stores. The allocation of strategy to stores was made randomly. The amount of sales (in RM 000's) during a month at each of the twelve stores were recorded. It is known that the monthly sales in all stores are approximately normally distributed. The table shown below reports the sales information. Strategy III (prizes for purchases above certain amount) Strategy I (Voucher) Strategy II (Discounts) Observation 1 96 135 160 Observation 2 129 131 150 Observation 3 135 129 148

Name: Please use typing to ansewr all as from one subpart. (iv) Test whether
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Description: Please use typing to ansewr all as from one subpart. (iv) Test whether there is a difference in sales between stores with differentadvertising strategies at 5% significance level.Explain the steps that should be taken to ensure that the discrepancy i

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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