Question

Find a 90% confidence interval for a population mean 𝜇 for these values. (Round your answers to three decimal places.) (a)n = 125, x = 0.82, s2 = 0.083 b.)n = 90, x = 25.1, s2 = 3.97

Name: find a 90 confidence interval for a population mean for these values round your answers to three decimal places an 125 x 082 s2 0083 bn 90 x 251 s2 397 52937
Uploaded: 2022-11-19T01:56:12-08:00
Duration: 3 min 1 s
Channel: T. L.
Description: find a 90 confidence interval for a population mean for these values round your answers to three decimal places an 125 x 082 s2 0083 bn 90 x 251 s2 397 52937

          Find a 90% confidence interval for a population mean 𝜇 for these values. (Round your answers to three decimal places.) (a)n = 125, x = 0.82, s2 = 0.083  b.)n = 90, x = 25.1, s2 = 3.97

Added by Miguel T.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert T. L.

11/19/2022

Step 1

The formula for the standard error of the mean is: SEM = sqrt(s^2 / n) For part (a): n = 125 s^2 = 0.083 SEM = sqrt(0.083 / 125) = 0.009 For part (b): n = 90 s^2 = 3.97 SEM = sqrt(3.97 / 90) = 0.189 Show more…

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Find a 90% confidence interval for a population mean 𝜇 for these values. (Round your answers to three decimal places.) (a)n = 125, x = 0.82, s2 = 0.083 b.)n = 90, x = 25.1, s2 = 3.97