Author: Anonymous

Bright Bulb manufacturing decided to develop a process control P-chart based on the following sample data.  What are the upper and lower control limits (UCL, LCL) computed for this chart?  

BuyJunk.com wants to compare the average sales per customer for two of their sales associates, Rodgriguez and Johnson. A sample of the average daily sales for each is shown, as well as the output of an Excel two sample test at the .05 significance level. Assuming BuyJunk.com is conducting a hypothesis test to compare the average sales of Johnson and Rodgriguez.  The null and alternate hypotheses are as follows:                                   Ho =      Johnson Mean Sales = Rogriguez Mean Sales                                 H1 =      Johnson Mean Sales Rogriguez Mean Sales   Based on the Excel output, what is your decision?  

A national manufacturer of boat motor bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is measured in millimeters. The results are of the sample are:  The researcher is interested in determining if the variances of these two samples is equal or unequal.  What is the value of F that the manager computed to determine this?    

The contingency table for a sample of corporate executives classified by educational level and the social activity follows. The expected frequency for the “below average” social activity and “college” education is equal to: 

Which of the following control charts is used to monitor the percent of defective items within a sample?

The lowest level of force is generally considered:

A critical part of crisis communication is:

Under the social contract, citizens keep all rights and do not give anything up to the state.

What is the primary purpose of the use-of-force training for law enforcement officers?

An officer’s perception of immediate danger is a critical factor in justifying the use of deadly force.