Question: A 95% confidence interval is found to be (30, 36). The sample standard deviation is 9, and the sample size is 36. If you wanted

A 95% confidence interval is found to be (30, 36). The

sample standard deviation is 9, and the sample size is 36. If

A 95% confidence interval is found to be (30, 36). The sample standard deviation is 9, and the sample size is 36. If you wanted a smaller interval, what could you do? A. Increase the confidence level to 99.7%. O B. None of these O C. Increase the sample size to 100, O D. Decrease the sample size to 30. SUBMIT

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