The Federal Trade Commission wants to estimate the average amount of Pepsi that is placed in 2-liter bottles at the Jonesville, North Carolina bottling plant. A random sample of 100 2-liter bottles from this bottling plant yielded a sample average of 1.985 liters. The bottling plant has informed the FTC that the standard deviation for the amount of Pepsi placed in all 2-liter bottles is .05 liters. 3. a. What is the best point estimate of the population mean? b. Construct a 90% confidence interval. (90% = 1.65) Za/20 Vn c. Can we conclude that the average for all bottles does not meet the 2-liter snecification?

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The Federal Trade Commission wants to estimate the average amount of Pepsi
that is placed in 2-liter bottles at the Jonesville, North Carolina bottling plant. A
random sample of 100 2-liter bottles from this bottling plant yielded a sample
average of 1.985 liters. The bottling plant has informed the FTC that the standard
deviation for the amount of Pepsi placed in all 2-liter bottles
3.
.05 liters.
a.
What is the best point estimate of the population mean?
b. Construct a 90% confidence interval. (90% = 1.65)
Za/2
Vn
c. Can we conclude that the average for all bottles does not meet the 2-liter
specification?
1
Transcribed Image Text:The Federal Trade Commission wants to estimate the average amount of Pepsi that is placed in 2-liter bottles at the Jonesville, North Carolina bottling plant. A random sample of 100 2-liter bottles from this bottling plant yielded a sample average of 1.985 liters. The bottling plant has informed the FTC that the standard deviation for the amount of Pepsi placed in all 2-liter bottles 3. .05 liters. a. What is the best point estimate of the population mean? b. Construct a 90% confidence interval. (90% = 1.65) Za/2 Vn c. Can we conclude that the average for all bottles does not meet the 2-liter specification? 1
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