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Add a different outlier. Refer to the previous two exercises. Add an additional observation with Y = 29 and X = 50 to the original data set.
(a) Repeat the analysis that you performed in the first exercise and summarize your results, paying particular attention to the effect of this outlier.
(b) In this exercise and in the previous one, you added an outlier to the original data set and reanalyzed the data. Write a short summary of the changes in correlations that can result from different kinds of outliers.
Exercises Add an outlier. Refer to the previous exercise. Add an additional observation with Y = 50 and X = 30 to the data set. Repeat the analysis that you performed in the previous exercise and summarize your results, paying particular attention to the effect of this outlier.
If the standard deviation of the amount spent on books is $8.42, find these probabilities for a randomly selected American. Put answer in percent form.
Basic Statistics problem
From past experience, an airline has found the luggage weight for individual air travelers on its trans-Atlantic route to have a mean of 80 pounds and a standard deviation of 20 pounds.
Suppose the credit center selects five cardholders at random. What is the probability that all five cardholders will pay their new monthly balance in full before the payment due date?
What type of data would you obtain from a rating scale? Prove an application/example in your response of how this instrument could be used. For what population would you use a graphical rating scale?
(a) Show for either the discrete case or the continuous case that the partial derivative of the joint momentgenerating function with respect to ti at t1 = t2 = ··· = tk = 0 is E(Xi).
Find the z-score for each student and indicate which one has a better relative position. An Art Major earned a grade of 46 on an exam with = 50 and s = 5.
Calculate The Expected Value of X
q1. calculate sp the sum of products of deviations for the following scores. note both means are decimal values
What would happen if the forest service agent took another sample of 31 trees? Would the slope change? Would the intercept change? What about a third sample of 31 trees?
Your supervisor has asked you to prepare a brief report comparing the sales volumes and the consistency of sales of these four salespersons
Describe the optimal solution to a linear programming problem. comprise the following constraints from a two -variable linear program.
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