Question

Using the simple random sample of weights of women from a data set, we obtain these sample statistics: n=40 and x overbar=142.62 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma σ=32.9932.99lb. a. Find the best point estimate of the mean weight of all women. b. Find a 90% confidence interval estimate of the mean weight of all women.

Name: using the simple random sample of weights of women from a data set we obtain these sample statistics n40 and x overbar14262 lb research from other sources suggests that the population of wei 61685
Uploaded: 2022-05-07T02:24:02-08:00
Duration: 2 min 32 s
Channel: Robin Corrigan
Description: using the simple random sample of weights of women from a data set we obtain these sample statistics n40 and x overbar14262 lb research from other sources suggests that the population of wei 61685

          Using the simple random sample of weights of women from a data
set, we obtain these sample statistics:
n=40 and x overbar=142.62 lb. Research from other sources
suggests that the population of weights of women has a standard
deviation given by sigma σ=32.9932.99lb.
a. Find the best point estimate of the mean
weight of all women.
b. Find a 90% confidence interval estimate of
the mean weight of all women.

Added by Sean G.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Robin Corrigan

05/07/2022

Step 1

Given that the sample mean is 142.62 lb, the best point estimate of the population mean weight of all women is also 142.62 lb. Show more…

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Using the simple random sample of weights of women from a data set, we obtain these sample statistics: n=40 and x overbar=142.62 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma σ=32.9932.99lb. a. Find the best point estimate of the mean weight of all women. b. Find a 90% confidence interval estimate of the mean weight of all women.