Respuesta :
The most effective study design was "a totally random structure. Randomly choose three stores for each of the nine permutations of the price level as well as packaging type."
Based on information provided by the market research firm
27 shoppers with comparable characteristics in total were included in the study.
There are nine combinations in total.
3 levels are the total amount of price tiers.
Three different package types total.
Total sales time period: 7 weeks
According to the completely randomised design, just one key component needs to be studied in order to determine its impacts.
For each type and level for each combination, we must here employ a completely random design.
Consequently, the appropriate claim is "a totally random structure. Randomly choose three stores for each of the nine permutations of price level but also packaging type."
Since the stated question isn't complete, I've generally answered it.
The complete question is :
A market research firm is studying the effects of price and type of packaging on sales of a particular product. Twenty-seven stores with shoppers of similar characteristics will be used in the study. The nine combinations of three price levels and three packaging types are the treatments of interest. Total sales of the product over a seven-week period will be recorded. Which of the following describes the best design to use for the study?
a. А A completely randomized design Randomly assign the nine combinations of price level and packaging type that three stores use each combination
b. A completely randomized design. Randomly assign the three price levels so that nine stores use each price level
c. A completely randomized design. Randomly assign the three packaging types so that nine stores use each type of packaging
d. A randomized block design Use packaging as a block. Randomly assign the nine combinations of three price levels and three packaging types so that three stores use each combination
e. A randomized block design. Use packaging as a block Randomly assign nine stores to each packaging type, then randomly assign price level to three stores within each block.
Learn more about completely randomized design here
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