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You've administered a standardized test of manual dexterity to two groups of 10 semi skilled workers. One of these two groups of workers will be employed by you to work in a warehouse with many fragile items. The higher the manual dexterity of a worker the less likelihood that worker will break significant inventory. Because of a unique contract you must hire all 10 employees from one of the two groups and none of the employees from the other.
Group A Scores Group B Scores
77 100
87 99
80 62
91 57
77 95
84 96
90 69
60 32
79 83
66 98
You must decide which group to choose. Consider at least two measures of central tendency and at least one measure of dispersion for each group and use those to make your choice. Be sure to justify your choice with at least one page of discussion and analysis. Can you base a decision on the information provided and the measures that you calculated only?
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Provide an example of three events that would be mutually exclusive. Are these events also exhaustive? Then, give an example of three events that would be exhaustive. Are these exhaustive events also mutually exclusive?
Construct a relative frequency distribution for the weights of regular Coke by starting the first class at 0.7900 lb. and use a class width of 0.0050 lb.
Create Frequency Distribution of Sample Mean. Compute and Identifies Sampling Distribution of Sample Mean.
Is there a method which is accepted across industries for determining the minimum size of valid sample? N>50 +(8m aka 8 times the number of independent variables)
The publisher reports that 80% of college professors require or recommend that their students purchase some type of textbook package.
What assumption about the population distribution is needed in order to conduct the t test in (a)?
Discuss the limitation of the expected value approach to assessing the risks of taking on the franchise. What other factors should be considered by Ariba Ltd?
Find the standard normal area for each of the following: (Round the answers to 4 decimal places.)
Determine the mean and standard deviation of following probability distribution.
What would be the critical value under the null hypothesis if the size of your test were 5%?
Compare these with the percentages specified by Tchebysheff's Theorem.
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