Construct a 90% confidence interval for the variance (standard deviation) of all capsule weight. i. Procedure: Select an answer ii. Assumptions: (select everything that applies) O Sample size is greater than 30 O Population standard deviation is unknown O Simple random sample O Population standard deviation is known O Normal population O The number of positive and negative responses are both greater than 10 ii. Unknown parameter: Select an answer
Construct a 90% confidence interval for the variance (standard deviation) of all capsule weight. i. Procedure: Select an answer ii. Assumptions: (select everything that applies) O Sample size is greater than 30 O Population standard deviation is unknown O Simple random sample O Population standard deviation is known O Normal population O The number of positive and negative responses are both greater than 10 ii. Unknown parameter: Select an answer
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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Please answer ( i, ii, iv) thank you
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 15 capsules was taken and the weights are provided below:
100.5
99.6
100.7
100
99.8
100.3
101
100.4
98.7
99.9
98.8
99.2
99.7
98.6
99.2
The mean of the data set is 99.8; the sample standard deviation is 0.75; if the normality plot is not
provided you may assume that the capsule weights are normally distributed.
Construct a 90% confidence interval for the variance (standard deviation) of all capsule weight.
i. Procedure: Select an answer
ii. Assumptions: (select everything that applies)
O Sample size is greater than 30
O Population standard deviation is unknown
O Simple random sample
O Population standard deviation is known
O Normal population
O The number of positive and negative responses are both greater than 10
iii. Unknown parameter: Select an answer
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