Question

To estimate the mean weight of the adult females in a certain region, a simple random of 40 women are selected and the mean of the weights in the sample is 146.2 lb. and the standard deviation of the weights in the sample is 37.6 lb. Write the upper-end* of a 95% confidence interval to estimate the mean of all adult females in this region based on this sample. round your answer to two digits after the decimal sign. *: Example: upper end of the interval (5.87, 8.91) is 8.91

Name: to estimate the mean weight of the adult females in a certain region a simple random of 40 women are selected and the mean of the weights in the sample is 1462 lb and the standard deviation 05347
Uploaded: 2021-12-24T12:40:13-08:00
Duration: 1 min 28 s
Channel: Marc Lauzon
Description: to estimate the mean weight of the adult females in a certain region a simple random of 40 women are selected and the mean of the weights in the sample is 1462 lb and the standard deviation 05347

          To estimate the mean weight of the adult females in a certain
region, a simple random of 40 women are selected and the mean of
the weights in the sample is 146.2 lb. and the standard deviation
of the weights in the sample is 37.6 lb. Write the upper-end* of a
95% confidence interval to estimate the mean of all adult females
in this region based on this sample. round your answer to two
digits after the decimal sign. *: Example: upper end of the
interval (5.87, 8.91) is 8.91

Added by Wendy V.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Marc Lauzon

12/24/2021

Step 1

03\), \(s = 37.6\), and \(n = 40\). Substitute the values: \(ME = 2.03 \times \frac{37.6}{\sqrt{40}}\). Calculate the margin of error: \(ME = 2.03 \times \frac{37.6}{\sqrt{40}} = 12.03\). Show more…

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To estimate the mean weight of the adult females in a certain region, a simple random of 40 women are selected and the mean of the weights in the sample is 146.2 lb. and the standard deviation of the weights in the sample is 37.6 lb. Write the upper-end* of a 95% confidence interval to estimate the mean of all adult females in this region based on this sample. round your answer to two digits after the decimal sign. *: Example: upper end of the interval (5.87, 8.91) is 8.91