Question

If $\bar{X} = 114$, $\sigma = 26$, and $n = 38$, construct a 95\% confidence interval estimate of the population mean, $\mu$. 106.04 $\leq \mu \leq$ 121.96 (Round to two decimal places as needed.)

          If \(\bar{X} = 114\), \(\sigma = 26\), and \(n = 38\), construct a 95\% confidence interval estimate of the population mean, \(\mu\).
106.04 \(\leq \mu \leq\) 121.96
(Round to two decimal places as needed.)

If X̅ = 114, σ = 26, and n = 38, construct a 95% confidence interval estimate of the population mean, μ.
106.04 ≤μ≤ 121.96
(Round to two decimal places as needed.)

Added by Melissa B.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Prabhakar Kumar

08/29/2023

Step 1

Step 1: The formula for a confidence interval for the population mean is: $\bar{X} \pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$ Show more…

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If $\bar{X}$ = 114, σ = 26, and n = 38, construct a 95% confidence interval estimate of the population mean, μ. 106.04 ≤ μ ≤ 121.96 (Round to two decimal places as needed.)