Students each semester a sample of 25 students

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students each semester. A sample of 25 students enrolled in the university indicates that x(bar) = $315.40 and s = $75. (Note the sample standard deviation is different from the first part).
A mean that is in a confidence interval is not rejected by the confidence interval, and we say the evidence against the mean is not significant. At the 0.05 level of significance, is there evidence against mean $300? Hide Feedback
7 / 7 points 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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