The mean annual tuition and fees for a sample of 12 private colleges was $39,200 with a standard deviation of $4300. A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $35,500.
i). State the null and alternate hypotheses.
ii). Compute the value of the test statistic and state the number of degrees of freed
iii). State a conclusion regarding $H _ { 0 }$. Use the $\alpha = 0.05$ level of significance.

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The Answer of The mean annual tuition and fees for a sample of 12 private colleges was $39,200 with a standard deviation of $4300. A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $35,500.
i). State the null and alternate hypotheses.
ii). Compute the value of the test statistic and state the number of degrees of freed
iii). State a conclusion regarding $H _ { 0 }$. Use the $\alpha = 0.05$ level of significance.

The Mean Annual Tuition and Fees for a Sample of 12