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(d) The quality control manager wants the machine to have a population standard deviation below 0.20 ounce. Does the confidence interval validate this desire? OA. No-the lower bound of the confidence interval is greater than 0.20. OB. No-the lower bound of the confidence interval is less than 0.20. OC. Yes-the lower bound of the confidence interval is less than 0.20. OD. Yes-the lower bound of the confidence interval is greater than 0.20.

(d) The quality control manager wants the machine to have a population standard deviation below 0.20 ounce. Does the confidence interval validate this desire? OA. No-the lower bound of the confidence interval is greater than 0.20. OB. No-the lower bound of the confidence interval is less than 0.20. OC. Yes-the lower bound of the confidence interval is less than 0.20. OD. Yes-the lower bound of the confidence interval is greater than 0.20.

MATLAB: An Introduction with Applications
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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A jar of peanuts is supposed to have 20 ounces of peanuts. The filling machine inevitably experiences fluctuations in filling, so a quality-control manager randomly samples 12 jars of pean facility and measures their contents. She obtains the accompanying data. Complete parts (a) through (d) below. Click here to view the peanut jar data. Click here to view the table of critical values of the chi-square distribution. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). IYU (b) Determine the sample standard deviation. s = 0.376 (Round to three decimal places as needed.) (c) Construct a 95% confidence interval for the population standard deviation of the number of ounces of peanuts. Select the correct choice below and fill in the answer boxes to complete (Use ascending order. Round to three decimal places as needed.) OA. There is a 95% chance that the true population standard deviation is between and 4 B. There is 95% confidence that the population standard deviation is between 0.266 and 0.638 OC. If repeated samples are taken, 95% of them will have the sample standard deviation between (d) The quality control manager wants the machine to have a population standard deviation below 0.20 ounce. Does the confidence interval validate this desire? OA. No-the lower bound of the confidence interval is greater than 0.20. B. No-the lower bound of the confidence interval is less than 0.20. C. Yes the lower bound of the confidence interval is less than 0.20. O D. Yes-the lower bound of the confidence interval is greater than 0.20. and cor all
Transcribed Image Text:A jar of peanuts is supposed to have 20 ounces of peanuts. The filling machine inevitably experiences fluctuations in filling, so a quality-control manager randomly samples 12 jars of pean facility and measures their contents. She obtains the accompanying data. Complete parts (a) through (d) below. Click here to view the peanut jar data. Click here to view the table of critical values of the chi-square distribution. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). IYU (b) Determine the sample standard deviation. s = 0.376 (Round to three decimal places as needed.) (c) Construct a 95% confidence interval for the population standard deviation of the number of ounces of peanuts. Select the correct choice below and fill in the answer boxes to complete (Use ascending order. Round to three decimal places as needed.) OA. There is a 95% chance that the true population standard deviation is between and 4 B. There is 95% confidence that the population standard deviation is between 0.266 and 0.638 OC. If repeated samples are taken, 95% of them will have the sample standard deviation between (d) The quality control manager wants the machine to have a population standard deviation below 0.20 ounce. Does the confidence interval validate this desire? OA. No-the lower bound of the confidence interval is greater than 0.20. B. No-the lower bound of the confidence interval is less than 0.20. C. Yes the lower bound of the confidence interval is less than 0.20. O D. Yes-the lower bound of the confidence interval is greater than 0.20. and cor all
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