Question

If X? = 78, S = 14, and n = 64, and assuming that the population is normally distributed, construct a 90% confidence interval estimate of the population mean, ?. ? ? ? (Round to two decimal places as needed.)

          If X? = 78, S = 14, and n = 64, and assuming that the population is normally distributed, construct a 90% confidence interval estimate of the population mean, ?.
? ? ?
(Round to two decimal places as needed.)

Added by Rebecca A.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Adi S

09/30/2023

Step 1

We need to find the standard error of the mean (SEM) using the formula: SEM = S / sqrt(n) where S is the sample standard deviation and n is the sample size. SEM = 14 / sqrt(64) = 1.75 Show more…

Show all steps

Thanks for your feedback!

If X̄ = 78, S = 14, and n = 64, and assuming that the population is normally distributed, construct a 90% confidence interval estimate of the population mean, μ.