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Create the indicated confidence interval for population mean using (a) t-distribution. (b) If you had incorrectly used normal distribution, which interval would be wider?

c=0.99, x=14.8, s=4.0, n=5

(a) 99% confidence interval using the t-distribution is ( ), ( ).

(b) If you had incorrectly used the normal distribution, which interval would be wider?

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