Question 1

What is the rank of 4 in the following distribution? 1, 2, 2, 3, 3, 4, 4, 5, 5

Accepted Answer

A)  4 
B)  5.5 
C)  6 
D)  7 
E)  6.5

Question 2

What rank does a score of 5 receive? Scores: (score of 1 ranks 1) 1, 2, 3, 4, 4, 4, 4, 5, 5

Accepted Answer

A)  5 
B)  8 
C)  8.5

Question 3

For large samples, the sampling distribution for the Mann-Whitney U test and the Wilcoxon matched-pairs signed-ranks T test is the normal curve.

Accepted Answer

A) True 
 B)False

Question 4

Students in a 1 P.M. laboratory section in general psychology observed eight people they did not know and made a judgment about their IQ. Half the eight wore glasses; half did not. The 3 P.M. laboratory section judged the same eight persons, but those who wore glasses at 1 P.M. did not wear them at 3 P.M. and vice versa. The result was that each of the eight was given an estimated IQ both with and without glasses. What is the question this experiment is designed to answer? What is the answer to the question?
 $$\begin{array} { c c } 
\text { Without Glasses } & \text { With Glasses } \
\hline 121 & 127 \
97 & 104 \
114 & 110 \
131 & 139 \
118 & 120 \
91 & 86 \
127 & 140 \
114 & 125
\end{array}$$

Accepted Answer

The answer of Students in a 1 P.M. laboratory section...

Question 5

For large samples, the sampling distribution for the Mann-Whitney U test and the Wilcoxon matched-pairs signed-ranks T test is the F distribution.

Accepted Answer

A) True 
 B)False

Question 6

The null hypothesis in nonparametric tests is that the populations being sampled from have identical distributions.

Accepted Answer

A) True 
 B)False

Question 7

Given the scores: 7, 7, 8, 8, 8, 9, a score of 8 is given the rank

Accepted Answer

A)  8 
B)  3.5 
C)  3 
D)  4

Question 8

In the Wilcoxon matched-pairs signed-ranks T test

Accepted Answer

A)  scores are ranked and differences are found between the ranks 
B)  differences are found between the scores and those differences are ranked 
C)  N is always the number of pairs 
D)  all of the descriptive alternatives are correct.

Question 9

To test for a significant difference between related samples, use a

Accepted Answer

A)  Mann-Whitney U test 
B)  Wilcoxon matched-pairs signed-ranks T test 
C)  Wilcoxon-Wilcox multiple-comparisons test 
D)  rs.

Question 10

Farmer Brown, who also serves as the community's Shakespearean Quantitative Critic, delivered a plea at the county fair, asking farmers from the county's three groups to lend him unshelled corn. (You might be able to figure out how he would phrase his pleas.) The number of bushels offered by the farmers is shown below. What can you conclude about the three groups? $$\begin{array} { c c c } 
\text { Friends } & \text { Romans } & \text { Countrymen } \
\hline 25 & 14 & 8 \
31 & 18 & 15 \
17 & 10 & 11 \
22 & 16 & 7 \
27 & 9 & 13 \
29 & 10 & 12
\end{array}$$

Accepted Answer

The answer of Farmer Brown, who also serves as the...

Question 11

require that the variances be equal for the dependent variable scores of the populations in question.

Accepted Answer

A)  parametric tests 
B)  nonparametric 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives are correct.

Question 12

Mann-Whitney U is to Wilcoxon matched-pairs signed-ranks T asis to

Accepted Answer

A)  independent-samples t is to paired-samples t 
B)  paired-samples t is to independent-samples t 
C)  random samples is to biased samples 
D)  biased samples is to random samples.

Question 13

If the populations that are being tested are normally distributed and have equal variances,

Accepted Answer

A)  parametric tests have more power 
B)  nonparametric tests have more power 
C)  unknown this issue has not yet been resolved.

Question 14

A Spearman rs value of 1.96 is not possible.

Accepted Answer

A) True 
 B)False

Question 15

When sample size is large, a U from a Mann-Whitney U test is evaluated using

Accepted Answer

A)  a t distribution 
B)  the normal distribution 
C)  an F distribution 
D)  a $x ^ { 2 }$ distribution.

Question 16

Suppose you obtained a Spearman rs of .52 between tennis ability and racquetball ability for a class of 14 college students. For a two-tailed test, you may conclude that tennis ability and racquetball ability are

Accepted Answer

A)  significantly correlated at the .05 level 
B)  significantly correlated at the .01 level 
C)  not significantly correlated.

Question 17

Suppose you find one instance of two tied ranks while you are calculating a Spearman rs. You should

Accepted Answer

A)  throw out that pair 
B)  give the difference a value of +.5 
C)  give the difference a value of -.5 
D)  give the difference a value of 0.

Question 18

Suppose you found, for the 26 people in your wing of the dorm, a Spearman rs of .38 between the number of breakfasts eaten during the term and grade point average. For a two-tailed test, you may conclude that there is

Accepted Answer

A)  no significant relationship 
B)  a significant relationship at the .05 level 
C)  a significant relationship at the .01 level 
D)  a significant relationship at the .001 level.

Question 19

What rank does a score of 3 receive? Scores: (score of 1 ranks 1) 1, 1, 2, 2, 3, 3, 3

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 20

The nonparametric tests in the text are based on sampling distributions of

Accepted Answer

A)  means 
B)  mean differences 
C)  ranks 
D)  variances.

Exam 15: More Nonparametric Tests

What is the rank of 4 in the following distribution? 1, 2, 2, 3, 3, 4, 4, 5, 5

What rank does a score of 5 receive? Scores: (score of 1 ranks 1) 1, 2, 3, 4, 4, 4, 4, 5, 5

For large samples, the sampling distribution for the Mann-Whitney U test and the Wilcoxon matched-pairs signed-ranks T test is the normal curve.

For large samples, the sampling distribution for the Mann-Whitney U test and the Wilcoxon matched-pairs signed-ranks T test is the F distribution.

The null hypothesis in nonparametric tests is that the populations being sampled from have identical distributions.

Given the scores: 7, 7, 8, 8, 8, 9, a score of 8 is given the rank

In the Wilcoxon matched-pairs signed-ranks T test

To test for a significant difference between related samples, use a

require that the variances be equal for the dependent variable scores of the populations in question.

Mann-Whitney U is to Wilcoxon matched-pairs signed-ranks T asis to

If the populations that are being tested are normally distributed and have equal variances,

A Spearman r_s value of 1.96 is not possible.

When sample size is large, a U from a Mann-Whitney U test is evaluated using

Suppose you obtained a Spearman r_s of .52 between tennis ability and racquetball ability for a class of 14 college students. For a two-tailed test, you may conclude that tennis ability and racquetball ability are

Suppose you find one instance of two tied ranks while you are calculating a Spearman r_s. You should

Suppose you found, for the 26 people in your wing of the dorm, a Spearman r_s of .38 between the number of breakfasts eaten during the term and grade point average. For a two-tailed test, you may conclude that there is

What rank does a score of 3 receive? Scores: (score of 1 ranks 1) 1, 1, 2, 2, 3, 3, 3

The nonparametric tests in the text are based on sampling distributions of