Question

Assume simple random sampling. Calculate the 95% confidence interval estimate for the population mean for each of the following. a. N = 1700; n = 70; s = 9; x = 142 b. N = 1725; n = 80; s^2 = 64; x = 231.9 c. N = 4200; n = 200; s^2 = 129; x = 56.3 a. < ? < (Round to three decimal places as needed.)

          Assume simple random sampling. Calculate the 95% confidence interval estimate for the population mean for each of the following.
a. N = 1700; n = 70; s = 9; x = 142
b. N = 1725; n = 80; s^2 = 64; x = 231.9
c. N = 4200; n = 200; s^2 = 129; x = 56.3
a. < ? <
(Round to three decimal places as needed.)

Assume simple random sampling. Calculate the 95% confidence interval estimate for the population mean for each of the following.
a. N = 1700; n = 70; s = 9; x = 142
b. N = 1725; n = 80; s^2 = 64; x = 231.9
c. N = 4200; n = 200; s^2 = 129; x = 56.3
a. < ? <
(Round to three decimal places as needed.)

Added by Jimmy J.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Jacob Fry

08/25/2023

Step 1

956 For the second scenario: SE = 64 / sqrt(80) = 7.155 For the third scenario: SE = 129 / sqrt(200) = 9.128 Step 2: Calculate the margin of error (ME) using the formula: ME = z * SE where z is the z-score corresponding to the desired confidence level. For a Show more…

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Assume simple random sampling. Calculate the 95% confidence interval estimate for the population mean for each of the following: a. N = 1700; n = 70; s = 9; x = 142 b. N = 1725; n = 80; s^2 = 64; x = 231.9 c. N = 4200; n = 200; s^2 = 129; x = 56.3 (Round to three decimal places as needed.)