Question

Construct a 95% confidence interval to estimate the population mean when x = 122 and s = 32 for the sample sizes below. a) n = 40 b) n = 70 c) n = 90 a) The 95% confidence interval for the population mean when n = 40 is from a lower limit of ? to an upper limit of ? (Round to two decimal places as needed.)

Name: construct a 95 confidence interval to estimate the population mean when x122 and s 32 for the sample sizes belowa n40 b n70 c n90a the 95 confidence interval for the population mean when n40 44608
Uploaded: 2023-07-03T22:32:32-08:00
Duration: 1 min 42 s
Channel: Rachel Gore
Description: construct a 95 confidence interval to estimate the population mean when x122 and s 32 for the sample sizes belowa n40 b n70 c n90a the 95 confidence interval for the population mean when n40 44608

          Construct a 95% confidence interval to estimate the population mean when x = 122 and s = 32 for the sample sizes below.
a) n = 40
b) n = 70
c) n = 90

a) The 95% confidence interval for the population mean when n = 40 is from a lower limit of ? to an upper limit of ? (Round to two decimal places as needed.)

Added by Jose Luis W.

Principles of Economics

Gregory Mankiw 8th Edition

Instant Answer

Solved by Expert Rachel Gore

07/03/2023

Step 1

The sample mean is x = 122. The standard error is s/sqrt(n) = 32/sqrt(40) = 5.06. Show more…

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Construct a 95% confidence interval to estimate the population mean when x = 122 and s = 32 for the sample sizes below. a) n = 40 b) n = 70 c) n = 90 a) The 95% confidence interval for the population mean when n = 40 is from a lower limit of ? to an upper limit of ? (Round to two decimal places as needed.)