possible. You gather a random sample of 17 containers. Estimate the population standard deviation at a 95% level of confidence.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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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 95% level of
confidence.
11.94
11.99 11.97 11.95 11.85 12.1
12.07 12.16 12.13 12.1 12.01 12.1
11.95
12 11.93 11.96 12.1
(Data checksum: 204.31)
Note: Keep as many decimals as possible while making these
calculations. If possible, keep all answers exact by storing
answers as variables on your calculator or computer. Round
final answer to 4 decimal places.
a) Find the sample standard deviation:
b) Find the lower and upper x² critical values at 95%
confidence:
Lower:
Upper:
c) Report your confidence interval for o: (
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 95% level of confidence. 11.94 11.99 11.97 11.95 11.85 12.1 12.07 12.16 12.13 12.1 12.01 12.1 11.95 12 11.93 11.96 12.1 (Data checksum: 204.31) Note: Keep as many decimals as possible while making these calculations. If possible, keep all answers exact by storing answers as variables on your calculator or computer. Round final answer to 4 decimal places. a) Find the sample standard deviation: b) Find the lower and upper x² critical values at 95% confidence: Lower: Upper: c) Report your confidence interval for o: (
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