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If a researcher wishes to conduct a study about how much consumers in a target market segment intend to spend on a type of product (e.g. shampoo) during the next year, and wants to be 95 percent confident of the results with an error of plus or minus $1.50, and if this same type of study conducted last year had a standard deviation of about $29.25, what the appropriate sample size for this study would be approximately:

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Category:- Statistics and Probability
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