The director of a medical hospital feels that her surgeons perform more operations per year than the national average of 211. She selected a random sample of 15 surgeons and found that the mean number of operations they performed was 212.6. The standard deviation of the sample was 3.8. Is there enough evidence to support the director's feelings at =α0.10? Assume that the population is approximately normally distributed. Use the critical value method and tables. State the hypotheses and identify the claim. H0: Claim or not a Claim H1: Claim or not a Claim This Hypothesis test is a one-tailed or two-tailed test? Find the Critical Value(s). Round the answer to at least two decimal places. Compute the test Value: Make the decision to reject or not the null hypothesis. Summarize the results. The There is or is not enough evidence to support the claim.
Medical Operations The director of a medical hospital feels that her surgeons perform more operations per year than the national average of 211. She selected a random sample of 15 surgeons and found that the
State the hypotheses and identify the claim.
H0: Claim or not a Claim
H1: Claim or not a Claim
This Hypothesis test is a one-tailed or two-tailed test?
Find the Critical Value(s). Round the answer to at least two decimal places.
Compute the test Value:
Make the decision to reject or not the null hypothesis.
Summarize the results. The
There is or is not enough evidence to support the claim.
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