OPIM 5103 - Managerial Statistics Stephanie Spiridon 11/13/17 12:41 PM Homework:

Question

OPIM 5103 - Managerial Statistics Stephanie Spiridon 11/13/17 12:41 PM Homework: Homework 07 - Chapter 08 Save Score: 14.29 of 25 pts 4 of 4 (4 complete) HW Score: 89.29%, 89.29 of 100 pts Question Help A quality characteristic of interest for a tea-bag-filling process is the weight of the tea in the individual bags. The label weight on the package indicates that the mean amount is 5.59 grams of tea in a bag. Problems arise if the bags are underfilled or if the mean amount of tea in a bag exceeds the label weight. The accompanying data are the weights, in grams, of a sample of 50 tea bags produced in one hour by a single machine. Complete parts (a) through (c) below Click the icon to view the tea bag weight data a. Construct a 90% confidence interval estimate for the population mean weight of the tea bags 5.57 SHs 5.61 (Round to two decimal places as needed.) b. Is the company meeting the requirement set forth on the label that the mean amount of tea in a bag is 5.59 grams? is meeting the requirement set forth on the label that the mean amount of tea in a bag is 5.59 grams, since 5.59 is contained within the The company interval c. Do you think the assumption needed to construct the confidence interval estimate in (a) is valid? The assumption needed to construct the confidence interval estimate in (a) is that assumption | This | be considered valid, based on the sample standard deviation is equal to the population standard deviation the weights are normally distributed the weights are uniformly distributed at least five tea bags are below the target Click to select your answer(s) and then click Check Answer. All parts showing Clear All Check Answer

Explanation / Answer

c) The assumption needed to construct the confidence interval estimate in (a) is that at least five tea bags below the target.This assumption can be considered valid, based on information provided in the problem statement.

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