For a certain drug, based on standards set by the United States Pharmacopeia (USP) - an official public standards-setting authority for all prescription and over-the-counter medicines and other health care products manufactured or sold in the United States, a standard deviation of capsule weights of less than 2 mg is acceptable. A sample of 12 capsules was taken and the weights are provided below: 100.7 99.6 98.8 100.3 98.4 101.5 98.8 101 98.6 100.2 100 100.3 The mean of the data set is 99.9; the sample standard deviation is 1.01; if the normality plot is not provided you may assume that the capsule weights are normally distributed. Construct a 95% confidence interval for the variance (standard deviation) of all capsule weight.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Point estimate: 

sample mean or sample proportion or sample variance 

iv. Point estimate: Select an answer
(Round the answer to 3 decimal places)
v. Confidence level
% and a =
also
and 1
2
o Critical values: (Round the answer to 3 decimal places)
· left=
right=
vi. Margin of error (if applicable):
(Round the answer to 3 decimal places)
Transcribed Image Text:iv. Point estimate: Select an answer (Round the answer to 3 decimal places) v. Confidence level % and a = also and 1 2 o Critical values: (Round the answer to 3 decimal places) · left= right= vi. Margin of error (if applicable): (Round the answer to 3 decimal places)
For a certain drug, based on standards set by the United States Pharmacopeia (USP) - an official public
standards-setting authority for all prescription and over-the-counter medicines and other health care
products manufactured or sold in the United States, a standard deviation of capsule weights of less than 2
mg is acceptable. A sample of 12 capsules was taken and the weights are provided below:
98.8
100.7
100.3
101
100.3
98.4
101.5
98.8
98.6
100.2
99.6
100
The mean of the data set is 99.9; the sample standard deviation is 1.01; if the normality plot is not
provided you may assume that the capsule weights are normally distributed.
Construct a 95% confidence interval for the variance (standard deviation) of all capsule weight.
Transcribed Image Text:For a certain drug, based on standards set by the United States Pharmacopeia (USP) - an official public standards-setting authority for all prescription and over-the-counter medicines and other health care products manufactured or sold in the United States, a standard deviation of capsule weights of less than 2 mg is acceptable. A sample of 12 capsules was taken and the weights are provided below: 98.8 100.7 100.3 101 100.3 98.4 101.5 98.8 98.6 100.2 99.6 100 The mean of the data set is 99.9; the sample standard deviation is 1.01; if the normality plot is not provided you may assume that the capsule weights are normally distributed. Construct a 95% confidence interval for the variance (standard deviation) of all capsule weight.
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