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Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,790; SSTR = 4580.
a. Set up the ANOVA table for this problem.
b. Use = .05 to test for any significant difference in the means for the three assembly methods.
The mean return for a random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Build a 95 percent confidence interval for mu, population mean.
What is the p-value associated with the above sample result?
Construct a 95 percent confidence interval for the true mean.
Motorola takes two weeks to supply an order. if the store manager is targeting a fill rate of 99%, what safety inventory should the store carry? What should its ROP be?
Calculate the average of deposits per bank for FDIC- inured institutions during both time periods and describe the relationship between the two averages. Provide a reason for the difference.
If an original set of measurements is made in inches and has mean of 36 and variance of 144, what will be the mean, variance, and standard deviation if:
The mean of a standard normal probability distribution.
Construct a 99% confidence interval for the population mean tread wear for this type of tire.
WHich sampling method from the choices listed above would be best? Describe how you would carry out your chosen sampling method of a student from part (a)
One thing you have learned is that the tangency portfolio will give you the maximum Sharpe ratio. Consequently, you have constructed such a portfolio. What are you portfolio weights.
There're several advantages of using a paired t-test. Since the same subjects are being tested in each of the varying conditions, those subjects serve as their own control.
Probability based on addition rule - Find the probability that a randomly chosen sold automobile from this sample is silver or an SUV?
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