The following data represent the pH of rain for a random sample of 12 rain dates in a particular region. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. The sample standard deviation is s = 0.345. Construct and interpret a 90% confidence interval for the standard deviation pH of rainwater in this region. 4.68 5.11 5.12 4.89 4.76 4.77 5.80 4.67 4.92 4.81 4.65 4.45 E Click the icon to view the table of critical values of the chi-square distribution. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) O A. There is a 90% probability that the true population standard deviation is between and O B. If repeated samples are taken, 90% of them will have the sample standard deviation between and O C. There is 90% confidence that the population standard deviation is between and
The following data represent the pH of rain for a random sample of 12 rain dates in a particular region. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. The sample standard deviation is s = 0.345. Construct and interpret a 90% confidence interval for the standard deviation pH of rainwater in this region. 4.68 5.11 5.12 4.89 4.76 4.77 5.80 4.67 4.92 4.81 4.65 4.45 E Click the icon to view the table of critical values of the chi-square distribution. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) O A. There is a 90% probability that the true population standard deviation is between and O B. If repeated samples are taken, 90% of them will have the sample standard deviation between and O C. There is 90% confidence that the population standard deviation is between and
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The following data represent the pH of rain for a random sample of 12 rain dates in a particular region. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot
indicates there are no outliers. The sample standard deviation is s = 0.345. Construct and interpret a 90% confidence interval for the standard deviation pH of rainwater in this region.
4.68
5.11
5.12
4.89
4.76
4.77
5.80
4.67
4.92
4.81
4.65
4.45
Click the icon to view the table of critical values of the chi-square distribution.
Select the correct choice below and fill in the answer boxes to complete your choice.
(Use ascending order. Round to three decimal places as needed.)
A. There is a 90% probability that the true population standard deviation is between
and
O B. If repeated samples are taken, 90% of them will have the sample standard deviation between
and
O C. There is 90% confidence that the population standard deviation is between
and

Transcribed Image Text:A simple random sample of size n= 300 individuals who are currently employed is asked if they work at home at least once per week. Of the 300 employed individuals surveyed, 40 responded that they did work at
home at least once per week. Construct a 99% confidence interval for the population proportion of employed individuals who work at home at least once per week.
The lower bound is
(Round to three decimal places as needed.)
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