You work for a soft-drink company in the quality control division. You are interested in the standard deviation of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a random sample of 17 containers. Estimate the population standard deviation at a 98% level of confidence. 11.99 12.01 11.71 12.1 11.96 12 11.86 11.96 12.15 12.07 12.17 12.14 11.84 11.87 11.99 12.08 11.97 (Data checksum: 203.87) Note: Keep as many decimats as possible while making these calculations. If possible, keep all answers exact by storing answers as variables on your calculator-or computer. a) Find the sample standard deviation: b) Find the lower and upper x critical values at 98% confidence: Lower: Upper: c) Report your confidence interval for o:
You work for a soft-drink company in the quality control division. You are interested in the standard deviation of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a random sample of 17 containers. Estimate the population standard deviation at a 98% level of confidence. 11.99 12.01 11.71 12.1 11.96 12 11.86 11.96 12.15 12.07 12.17 12.14 11.84 11.87 11.99 12.08 11.97 (Data checksum: 203.87) Note: Keep as many decimats as possible while making these calculations. If possible, keep all answers exact by storing answers as variables on your calculator-or computer. a) Find the sample standard deviation: b) Find the lower and upper x critical values at 98% confidence: Lower: Upper: c) Report your confidence interval for o:
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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Question
![You work for a soft-drink company in the quality control division. You are interested in the standard
deviation of one of your production lines as a measure of consistency. The product is intended to have a
mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a
random sample of 17 containers. Estimate the population standard deviation at a 98% level of confidence.
11.99
12.01
11.71
12.1
11.96
12
11.86
11.96
12.15
12.07
12.17
12.14
11.84
11.87
11.99
12.08
11.97
(Data checksum: 203.87)
Note: Keep as many decimats as possible while making these calculations. If possible, keep all answers
exact by storing answers as variables on your calculator-or computer.
a) Find the sample standard deviation:
b) Find the lower and upper x critical values at 98% confidence:
Lower:
Upper:
c) Report your confidence interval for o:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F15f76621-45a9-4374-b000-b9a27f8a35d3%2F70ef076b-90c3-4978-9862-8a94ee497a24%2F9so4qyu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:You work for a soft-drink company in the quality control division. You are interested in the standard
deviation of one of your production lines as a measure of consistency. The product is intended to have a
mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a
random sample of 17 containers. Estimate the population standard deviation at a 98% level of confidence.
11.99
12.01
11.71
12.1
11.96
12
11.86
11.96
12.15
12.07
12.17
12.14
11.84
11.87
11.99
12.08
11.97
(Data checksum: 203.87)
Note: Keep as many decimats as possible while making these calculations. If possible, keep all answers
exact by storing answers as variables on your calculator-or computer.
a) Find the sample standard deviation:
b) Find the lower and upper x critical values at 98% confidence:
Lower:
Upper:
c) Report your confidence interval for o:
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