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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 77 87 80 91 77 84 90 60 79 66
Group B Scores 100 99 62 57 95 96 69 32 83 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?
What is approximately the largest sample mean of another sample of n= 16 participants you would expect to obtain from this finite population?
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Estimate the value of the population proportion.
Find a 95% confidence interval for the difference in the proportion of deaths between the streptokinase and the control group.
If Kim expects to use phone for 21 hours per month, which plan must she choose?
What is your conclusion? Are the two variables independent?
Determine the probability that Mary obtains exactly one Head.
The average score on math portion of SAT was 516 in 2002. Assume that the math score of all students taking the SAT 2002 were normally distributed with a mean of 516 and a standard deviation of 90.
Given that consumer changed te brands, what is the probability that consumer purchased fewer products than before?
Investigate the cost of a home mortgage and to determine the monthly payment.
Supposing that both populations are normally distributed, construct a 99% confidence interval for the ratio of the two population variances.
If standard deviation is 50 hours and α is equal to 0.01, what values for mean x will result in rejection of null hypothesis.
Setermine the probability that a specific driver had exactly two violations?
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