Exam 15: More Nonparametric Tests

Nonparametric methods for large sample tests use the distribution to provide probability figures.

According to the rationale for nonparametric tests, the null hypothesis is that the sum of the ranks of Population A and Population B will be

The date that is closest to the dates when nonparametric tests were introduced is

Chapter 15 of your textbook explained how to predict individual scores using a nonparametric regression technique.

The null hypotheses of parametric and nonparametric tests are identical.

A Spearman r_s value is never greater than 1.00.

One common use of statistics is to rank a set of cities so the Number 1 is "best"and Number Last is "worst."Suppose you thought that large cities would have a high ranking and that small cities would generally have lower ranks. Which statistic should you use to test this idea?

The first step in the rationale of nonparametric tests is that the null hypothesis isand therefore the sum of the ranks of the two groups should be .

It makes a difference in the __________ test(s) which value is given a rank of 1.

Forty-two rats were trained on a fixed-interval 1-minute operant-conditioning schedule. On such a schedule, the animal learns to respond after one minute has passed. This is a good test of the animal's perception of time. The 42 rats were divided into two groups. Group 1 was given a drug reputed to distort time perception. Two rats died of causes unrelated to the experiment. The following scores represent performance. Higher scores mean greater time distortion. Analyze with an appropriate nonparametric statistic. Drug No Drug 70 63 51 21 37 40 69 61 57 18 42 71 79 48 83 33 70 25 69 76 85 84 91 39 72 41 47 29 68 58 77 60 31 13 27 54 69 26 98 59 95 32

Tex, who had created the Stats Bar-X Ranch, nodded slightly as he rode out of the corral one last time, this time toward the sunset. "Whoa just a minute, Mr. Book," said the young blogger standing by the gate, "sorry to see you go. You always gave everybody a personal feeling… kind of a social connection, you know.""Yeah, well, this business has changed," Tex growled. "The price you have to pay is so high that folks just naturally find some cheaper way. And heck, I haven't been able to get any decent help since that night Ed left.""It sure is too bad, but please, would you give me just one more stat problem, maybe one with a moral?" implored the blogger, thinking of her readers."Well, sure, see what you think of this one."The cowpokes from nearby ranches all worry about their jobs. So they get a consultant who gives them a questionnaire, puts them through a seminar, and then makes them fill out the questionnaire again. The seminar is just videos of people doing interesting jobs and their background. The questionnaire is pretty long but it measures how many jobs you see yourself as being successful in. The scores are positively skewed and high scores mean more jobs. Analyze these data and tell about the effect of the seminar. Ranches Before After Bar X 50 59 Hat Y 45 43 2 Esses 54 70 Big T 40 60 little t 43 48 Graceful \chi 57 65 Hoofprint U 48 58 "Still sorry to see you go, sir, but if you want, you can always contribute to my blog.""Thanks, maybe I will. I'm probably more versatile than I realize."

Which of the following captures the theme of the E. F. Schumacher anecdote at the end of your book?

What rank would a score of 4 have in the following distribution? 1, 2, 3, 3, 3, 4, 4, 4, 6

The null hypothesis for nonparametric tests is that the populations the samples are drawn from are

Which of the terms below does not go with nonparametric statistics?

The numbers on the following page are the number of parasites in different samples of armadillos from 2002 to 2008. Analyze the data and write a conclusion about parasites in armadillos from 2002 to 2008. 2002 2004 2006 2008 22 14 10 12 25 18 8 27 32 10 3 23 20 21 0 20 28 10 7 24 22 15 5 17

Which of the following statistical tests is most similar to the Mann-Whitney U test?

Which of the following require a paired-samples design?

Nonparametric tests can never exceed the power that parametric tests have.

A value of 0 is obtained for U when