A company wanted to test which of its six different sales letters was the most e

Question

A company wanted to test which of its six different sales letters was the most effective in making sales. The company randomly assigned its prospective customers to on of its six groups, and each group received a different sales letter. Each sales letter either resulted ina sale or no sale.

One of the six sales letters produced 50% more sales thant eh next best performing sales letter.

What conclusion can be drwan from this study?

a. There is a casual relationship between teh sales letters and the sales

b. there is clera evidence of an asocaiton between teh sales letters and sales, but it cannot be asid thereis a causual relationship between teh sales lettes and sales.

c. conclusions cannot be made becasue there wasn ot a control group

d. conclusions cannot be made becasue the lurking variable of the customer's income is confounded with the sales letters.

Explanation / Answer

b.there is clera evidence of an asocaiton between teh sales letters and sales, but it cannot be asid thereis a causual relationship between teh sales lettes and sales.

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