Which of three strati?cation schemes would be best

Reference no: EM131010245

Suppose that you were asked to help design a survey of adult city residents in order to estimate the proportion that would support a sales tax increase. The plan is to use a strati?ed random sample, and three strati?cation schemes have been proposed.

Scheme 1: Stratify adult residents into four strata based on the ?rst letter of their last name (A-G, H-N, O-T, U-Z)

Scheme 2: Stratify adult residents into three strata: college students, nonstudents who work full time, nonstudents who do not work full time.

Scheme 3: Stratify adult residents into ?ve strata by randomly assigning residents into one of the ?ve strata. Which of the three strati?cation schemes would be best in this situation? Explain.

Reference no: EM131010245

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