Question: A simple random sample of 23 bicycle helmets had a mean price of x = $38.12. It is reasonable to assume that the population of

A simple random sample of 23 bicycle helmets had a mean price of x = $38.12. It is reasonable to assume that the population of helmet prices is approximately normal with population standard deviation o= $7.79. Is it appropriate to use the methods of this section to construct a confidence interval for the mean helmet price?

O Yes.

O No, the sample size is too small, and we cannot assume the population is approximately normal.

O No, the standard deviation is not known.

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