How many computers? In a simple random sample of 125 households, the sample mean number of personal computers was 2.90 . Assume the population standard deviation is =σ0.88 . Part: 0 / 4 0 of 4 Parts Complete Part 1 of 4 (a) Construct an 80 % confidence interval for the mean number of personal computers. Round the answer to at least two decimal places. An 80 % confidence interval for the m
How many computers? In a simple random sample of 125 households, the sample mean number of personal computers was 2.90 . Assume the population standard deviation is =σ0.88 . Part: 0 / 4 0 of 4 Parts Complete Part 1 of 4 (a) Construct an 80 % confidence interval for the mean number of personal computers. Round the answer to at least two decimal places. An 80 % confidence interval for the m
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
How many computers? In a simple random sample of
125
households, the sample mean number of personal computers was
2.90
. Assume the population standard deviation is
=σ0.88
.
Part: 0 / 4
0 of 4 Parts Complete
Part 1 of 4
(a) Construct an
80
%
confidence interval for the mean number of personal computers. Round the answer to at least two decimal places.
An
80
%
|
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Follow-up Question
Reading proficiency: An educator wants to construct a
98%
confidence interval for the proportion of elementary school children in Colorado who are proficient in reading.
Part: 0 / 3
0 of 3 Parts Complete
Part 1 of 3
(a) The results of a recent statewide test suggested that the proportion is
0.61
. Using this estimate, what
0.03
?
A sample of
98%
0.03
|
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