Question: Explain the difference between parts A and C. In both parts we are asked whether or not there is evidence that the population mean was

Explain the difference between parts A and C. In both parts we are asked whether or not there is evidence that the population mean was over $300.

In part A: x(bar) = $315.40; s = $43.2; sample size = 25

In part C: x(bar) = $315.40; s = $75; sample size = 25

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