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The following data represent the number of days absent per year in a population of six employees of a small company: 1 3 6 7 9 10 a. Assuming that you sample without replacement, select all possible samples of n = 2 and construct the sampling distribution of the mean. Compare the mean of all the samples means and also compute the population mean. Are they equal? What is the property called? Sampling Distribution of the Mean for n=2 Sample Number Outcome Sample Mean X 1 1.3 X=2 2 1.6 X=3.5 3 1.7 X=4 4 1.9 X=5 5 1.1 X=5.5 6 3.6 X=4.5 7 3.7 X=5 8 3.9 X=6 9 3.1 X=6.5 10 6.7 X=6.5 11 6.9 X=7.5 12 6.1 X=8 13 7.9 X=8 14 7.1 X=8.5 15 9.1 X=9.5 Total X=90 Mean of All possible Sample Means: X=90/15=6 Mean of All Population Elements: (1+3+6+7+9+10)/6=6 Both mean are equal to 6, this property is called Un-Biasedness. b. Repeat (a) for all the sampling distribution of the mean in (a) and (b) . Which sampling distribution has less variability? Why? c. Assuming that you sample with replacement, repeat (a) through (c) and compare the results. Which sampling distribution have the least variability - those in (a) or (b) ? Why? Show your work!
Graphical Solutions in Linear Programming have limited number of decision variables. What is the maximum number of decision variables used in graphical solutions?
The company SlimDown makes weight loss products.
Recorded the time in seconds it took for 8 participants to solve a puzzle. These times appear below. However, when the data was entered into the statistical program, the score that was supposed to be 22.1 was entered as 21.2. You had calculate..
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A Gallup poll conducted during May 20 - 22, 2005, asked 1006 Americans, "During the past year, about how many books, either hardcover or paperback, did you read either all or part of the way through?" Results of the survey indicated that the me..
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