Question
In: Statistics and Probability
Find the 90% confidence interval for the standard deviation of the lengths of pipes if a...
Find the 90% confidence interval for the standard deviation of the lengths of pipes if a sample of 22 pipes has a standard deviation of 10.6 inches.
a. (8.3, 13.8)
b. (8.5, 13.3)
c. (8.5, 14.3 )
d. (8.1, 15.3)
Solutions
Expert Solution
The answer is:
Calculations
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orchestra answered 1 year agoRelated Solutions
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d.) (2.6, 7.0)
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Please write neatly
How do you find a 99% Confidence Interval when given the average and the standard deviation?...
How do you find a 99% Confidence Interval when given the average
and the standard deviation? STD=8.54 AVG=66.43
Find out the 95% confidence interval for a sample whose Mean=10.50 and Standard Deviation is= 2.0....
Find out the 95% confidence interval for a sample whose
Mean=10.50 and Standard Deviation is= 2.0. The sample size is
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** please I need the answer in the computer typing not hand
writing.
Subject: Statistic
The width of a confidence interval will be: A) Wider when the sample standard deviation is...
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B) Narrower for 95% confidence than 99% confidence
C) Narrower for 95% confidence than 90% confidence
C) Wider for a sample size of 100 for a sample size of 50
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