The sample mean is 32, the sample size is 16, sample standard deviation is 6, and the confidence interval is 95%. What is the 95% confidence interval about the mean. What is the margin of error using the formula in the picture?
The sample mean is 32, the sample size is 16, sample standard deviation is 6, and the confidence interval is 95%. What is the 95% confidence interval about the mean. What is the margin of error using the formula in the picture?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The sample mean is 32, the sample size is 16, sample standard deviation is 6, and the confidence interval is 95%.
What is the 95% confidence interval about the mean. What is the margin of error using the formula in the picture?

Transcribed Image Text:a. Use the one-mean t-interval procedure with the sample mean, sample size, sample standard deviation, and
confidence level given below to find a confidence interval for the mean of the population from which the sample was
drawn.
b. Obtain the margin of error by taking half the length of the confidence interval.
S
c. Obtain the margin of error by using the formula ta/2"
√n
x = 32
n = 16
s = 6
Click here to view Page 1 of the table of t-values with area alpha to its right.
Click here to view Page 2 of the table of t-values with area alpha to its right.
a. The 95% confidence interval about u isto.
(Round to three decimal places as needed.)
confidence level = 95%
b. The margin of error found by taking half the length of the confidence interval is
(Round to three decimal places as needed.
c. The margin of error found by using the formula is
(Round to three decimal places as needed.)

Transcribed Image Text:표
ta/2n
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