A manufacturer of chocolate candies uses machines to package candies as they move along a filling line. Although the packages are labeled as 8​ ounces, the company wants the packages to contain a mean of 8.17 ounces so that virtually none of the packages contain less than 8 ounces. A sample of 50 packages is selected​ periodically, and the packaging process is stopped if there is evidence that the mean amount packaged is different from 8.17 ounces. Suppose that in a particular sample of 50 packages, the mean amount dispensed is 8.151 ounces, with a sample standard deviation of 0.046 ounce. Complete parts​ (a) and​ (b). Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance.) Determine the p- value and interpret its meaning.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A manufacturer of chocolate candies uses machines to package candies as they move along a filling line. Although the packages are labeled as 8​ ounces, the company wants the packages to contain a mean of 8.17 ounces so that virtually none of the packages contain less than 8 ounces. A sample of 50 packages is selected​ periodically, and the packaging process is stopped if there is evidence that the mean amount packaged is different from 8.17 ounces. Suppose that in a particular sample of 50 packages, the mean amount dispensed is 8.151 ounces, with a sample standard deviation of 0.046 ounce. Complete parts​ (a) and​ (b).

  1. Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance.)
  2. Determine the p- value and interpret its meaning.
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