A sample of size n = 35 has sample mean = 34.85 and sample standard deviation s = 17.9. a. Construct a 98% confidence interval for the population mean .
Added by Jeremy G.
Step 1
To construct a confidence interval, we need to determine the critical value. Since the sample size is large (n > 30), we can use the Z-distribution. The confidence level is 98%, which means the alpha level is 1 - 0.98 = 0.02. Since we want to find the critical Show more…
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