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A statistical process analyst is responsible for assuring statistical control. In one process, a machine is supposed to drop 11.4 ounces of mints into a bag. (Assume that this process can be approximated by a normal distribution). The acceptable ranges for weights of the bags of mints are 11.25 ounces to 11.55 ounces, inclusive. An error with the release valve has caused the setting on the mint release machine to "shift". Assume that the machine shift is filling the bags with a mean weight of 11.56 ounces and a standard deviation of 0.05 ounces. To check that the machine is placing the correct weight of mints into the bags, you randomly select three samples of five bags each and find the mean weight in ounces for each sample. Respond to the following: While sampling individual bags: You randomly select a bag of mints. What is the probability that the bag you select is not outside the acceptable range? (That is, you do not detect that the machine has shifted.) You randomly select 15 bags of mints. What is the probability that you select at least one bag that is not outside the acceptable range? While sampling groups of five: You randomly select a sample of five bags. What is the probability that your sample of five bags has a mean that is not outside the acceptable range? (That is, you do not detect that the machine has shifted.) You randomly select three samples of five bags. What is the probability that you select at least one sample of five bags that has a mean that is not outside the acceptable range? Describe your solutions to each of these problems and explain whether taking 15 bags of mints in one sample or three samples of five bags each is the better way to test for a process that is out of statistical control.
Purpose: For our assignment this week, we will test the claim that men with profiles on Match.com are shorter than the average height for all men in the United States.A sample of 71 males was chosen by recording the heights of every 18th males ..
This study investigates whether there are differences in the outcomes of three different treatments for anxiety. The treatment conditions that are compared are treatment with medication, treatment with psychotherapy, and placebo (inactive pills). In ..
The higher the scores on these measures, the higher the anxiety level of the participant.
Your readings this week have provided you with an overview of various types of research methodologies falling under Quantitative, Qualitative and Mixed Methodology research
Quantitative Business Analysis - Find Correlation, simple linear, and Multiple Regression Analysis
2.Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness always matter?
What level of evidence does this study design represent?
Use decision analysis tools discussed in class to determine what action the firm should pursue in order to minimize expected loss; either manual analysis or software is acceptable. Please also calculate the minimum expected loss.
question 1 variable xx lt- c3 4 8 4 2 1 0 6 variable yy lt- c1 2 4 2 2 0 1 4 calculate z-scores for all values in the
part i introduction this section should include some perspective about the problem you are trying to analyze in other
A large playlist consists of songs with times which have mean 2 minutes ten seconds and standard deviation 15 seconds.
A hospital conducted a study of waiting time in its emergency room. The hospital has a main campus and three satellite locations.Management had a business objective of reducing waiting time for emergency room cases that did not require immediate atte..
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