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 21 capsules was taken and the weights are provided below: 98.1 100.2 98.1 98 98.7 99.9 101 99 99.4 98.7 100.8 99.3 98.4 99.9 101.5 100.7 99.1 99.8 99.5 99.3 101.9 The mean of the data set is 99.59; the sample standard deviation is 1.119; 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 weights. i. Procedure: Select an answer ii. Assumptions: (select everything that applies) O Normal population The number of positive and negative responses are both greater than 10 O Sample size is greater than 30 O Simple random sample Population standard deviation is known O Population standard deviation is unknown iii. Unknown parameter: Select an answer
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 21 capsules was taken and the weights are provided below: 98.1 100.2 98.1 98 98.7 99.9 101 99 99.4 98.7 100.8 99.3 98.4 99.9 101.5 100.7 99.1 99.8 99.5 99.3 101.9 The mean of the data set is 99.59; the sample standard deviation is 1.119; 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 weights. i. Procedure: Select an answer ii. Assumptions: (select everything that applies) O Normal population The number of positive and negative responses are both greater than 10 O Sample size is greater than 30 O Simple random sample Population standard deviation is known O Population standard deviation is unknown iii. Unknown parameter: Select an answer
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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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 21 capsules was taken and the weights are provided below:
98.1
100.2
98.1
98
98.7
99.9
101
99
99.4
98.7
100.8
99.3
98.4
99.9
101.5
100.7
99.1
99.8
99.5
99.3
101.9
The mean of the data set is 99.59; the sample standard deviation is 1.119; 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 weights.
i. Procedure: Select an answer
ii. Assumptions: (select everything that applies)
O Normal population
O The number of positive and negative responses are both greater than 10
Sample size is greater than 30
) Simple random sample
Population standard deviation is known
O Population standard deviation is unknown
iii. Unknown parameter: Select an answer
Transcribed Image Text:The mean of the data set is 99.59; the sample standard deviation is 1.119; 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 weights.
i. Procedure: Select an answer
ii. Assumption: Select an answer
lies)
One variance x procedure
O Norm One mean T procedure
O The rOne proportion Z procedure
One mean Z procedure
Sample size is greater than 30
ve responses are both greater than 10
O Simple random sample
Population standard deviation is known
O Population standard deviation is unknown
iii. Unknown parameter: Select an answer
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