A woman is selected by a marketing company

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A woman is selected by a marketing company to participate in a paid focus group. The company says that the woman was selected because she was randomly chosen from all adults. This is stratified sampling, correct? Just a yes or no would be fine.

Many states are carefully considering steps that would help them collect sales taxes on items purchased through the Internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the Internet? Assume that we want to be99% confident that the sample percentage is within six percentage points of the true population percentage for all sales transactions.

Reference no: EM13875696

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