please type the answers so I can be able to read it and show work it is mandator
ID: 3292419 • Letter: P
Question
please type the answers so I can be able to read it and show work it is mandatory
Shelf height may affect the volume of sales for a product. In order to determine whether or not there is any effect on average sales due to product shelf height, a marketing consultant chooses four typical outlets, a supermarket, a drug store, a discount store, and a variety store, and for one week places the' product chosen at one eye level. A resting week follows and the product is moved to another height and so on for three different heights. The number of units sold per week at each location and height arc shown below followed by their analysis. What is the average number of units sold in a supermarket (rounded to the nearest thousandth)? a) 12.333 b) 48.250 c) 59.667 d) 60.917 What is the average number of units sold from a shelf level below (rounded to the nearest thousandth)? a) 12.333 b) 48.250 c) 59.667 d) 60.917 What is s_p^2 (rounded to the thousandths place)? a) 2.111 b) 8.333 c) 10.333 d) 12.333 To test whether there are any differences across types of stores, what test statistic would you use (rounded to the nearest thousandth)? a) 4.757 b) 5.143 c) 17.526 d) 57.092 To test whether there are any differences across shelf levels, what critical bound would you use at the 95% level (rounded to the nearest thousandth)? a) 4.757 b) 5.143 c) 17.526 d) 57.092Explanation / Answer
16) average number of units sold =(63+60+56)/3=59.667
option C
17)average number =(193/4)=48.25 ; option B
18)sp2 =MSE =2.1111 ; option A
19)as type of stores are in rows: therefore
F test stat =MSR/MSE =57.092 ' option D
20) as shelf levels are in columns ; therefore critical bound from F crit =5.143
option B
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