Question: For many years working full-time was 40 hours per week. A business researcher gathers data on the hours that corporate employees work each week. She

For many years "working full-time" was 40 hours per week. A business researcher gathers data on the hours that corporate employees work each week. She wants to determine if corporations now require a longer work week.

Group of answer choices

Testing a claim about a single population proportion.

Testing a claim about a single population mean.

Testing a claim about two population proportions.

Testing a claim about two population means.

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