Question

In an application to estimate the mean number of miles that down town employees commute to work round trip each day, the following information is given for a sample of size 23 with mean 4.97 and standard deviation 2.85. If the desired confidence level is 90 percent, the appropriate critical value is: a. 1.7171 b. 1.7139 c. 1.64 d. 1.28 e. 1.3212

          In an application to estimate the mean number of miles that down town employees commute to work round trip each day, the following information is given for a sample of size 23 with mean 4.97 and standard deviation 2.85. If the desired confidence level is 90 percent, the appropriate critical value is:

a. 1.7171
b. 1.7139
c. 1.64
d. 1.28
e. 1.3212

In an application to estimate the mean number of miles that down town employees commute to work round trip each day, the following information is given for a sample of size 23 with mean 4.97 and standard deviation 2.85. If the desired confidence level is 90 percent, the appropriate critical value is:

a. 1.7171
b. 1.7139
c. 1.64
d. 1.28
e. 1.3212

Added by Kayla S.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Adi S

11/07/2022

Step 1

Given that the critical value is 1.7139 and the standard deviation is 2.85, we can use the formula for margin of error: Margin of Error = Critical Value * (Standard Deviation / sqrt(sample size)) Margin of Error = 1.7139 * (2.85 / sqrt(23)) Margin of Error = Show more…

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In an application to estimate the mean number of miles that downtown employees commute to work round trip each day, the following information is given for a sample of size 23 with a mean of 4.97 and a standard deviation of 2.85. If the desired confidence level is 90 percent, the appropriate critical value is: