OpenStax, Introductory Statistics 2e §8.2 A Single Population Mean using the Student t Distribution · Exercise 36 · Statistics · Confidence intervals
A Single Population Mean using the Student t Distribution · Exercise 36
A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz. serving size. The sample mean is 13.30 with a sample standard deviation of 1.55. Assume the underlying population is normally distributed.
Find the 95% Confidence Interval for the true population mean for the amount of soda served.
(a) (12.42, 14.18)
(b) (12.32, 14.29)
(c) (12.50, 14.10)
(d) Impossible to determine
OpenStax, Introductory Statistics 2e · §8.2 A Single Population Mean using the Student t Distribution · Exercise 36
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