For each problem, select the best response. (a) Which of these variables is least likely to have
Question:
For each problem, select the best response.
(a) Which of these variables is least likely to have a Normal distribution?
A. Lengths of 50 newly hatched pythons.
B. Income per person for 150 different countries.
C. Heights of 100 white pine trees in a forest.
D. None of the above.
(b) The scores of adults on an RD test is approximately Normal with mean 100 and standard deviation 15. Corinne scores 118 on such test. Her z-score is about
A. 1.2
B. 0.67
C. 7.87
D. 18
E. None of the above.
(c) To completely specify the shape of a Normal distribution, you must give
A. the mean and the standard deviation.
B. the median and the standard deviation.
C. The five-number summary.
D. The mean and the median.
E. All of the above.
Applied Statistics in Business and Economics
ISBN: 978-0073521480
4th edition
Authors: David Doane, Lori Seward