As the size of the sample increases, what happens to the shape of the sampling distribution of sample means?
A) It becomes positively skewed.
B) It becomes negatively skewed.
C) It becomes uniformly distributed.
D) It becomes approximately normal.
Q. 2What are your hypotheses regarding this model? Explain. Are there any other variables you would have liked to include?
What will be an ideal response?
Q. 3Find the probability that the percentage of successes is between 0.38 and 0.43
What will be an ideal response?
Q. 4The procedure for the Wilcoxon rank sum test requires that we rank each group separately rather than pooling them together.
Indicate whether the statement is true or false
Q. 5In a regression problem the following pairs of (x, y) are given: (2, 1 ), (2, -1 ), (2, 0 ), (2, -2 ) and (2, 2 ). Which of the following is true of the given data?
A) For the given data, the coefficient of correlation is -1.
B) For the given data, the coefficient of correlation is 0.
C) For the given data, the coefficient of correlation is 1.
D) For the given data, the coefficient of correlation is 2.
Q. 6Outcomes such as reliability, defect levels, setup times, time to market, and productivity would be considered ________ outcomes.
A) customer-focused
B) workforce-focused
C) product and process
D) leadership and governance
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