Numerousy Skills: A Collection of Diverse Learning Resources

, DOWNLOAD THE Test Bank for Essentials of Statistics for The
TRUE/FALSEBehavioral Sciences 9th Edition Gravetter
1 : A student takes a 10-point quiz each week in statistics class. If the students quiz scores for
the first three weeks are 2, 6, and 10, then the mean score is M = 9.
A : true
B : false

Correct Answer : B

2 : A sample of n = 6 scores has X = 48. This sample has a mean of M = 8.
A : true
B : false

Correct Answer : A

3 : A sample of n = 8 scores has a mean of M = 16. For this sample, X = 2.
A : true
B : false

Correct Answer : B

4 : A sample with a mean of M = 20 has X = 120. There are n = 6 scores in the sample.
A : true
B : false

Correct Answer : A

5 : For the scores in the following frequency distribution table, the mean is M = 3. X f 4 1 3 4 2 2
A : true
B : false

Correct Answer : B

6 : The mean is considered to be the balance point for a distribution because exactly half of the
scores are located above the mean and exactly half are below the mean.
A : true
B : false

Correct Answer : B

7 : In a sample of n = 3 scores, if two scores are each below the mean by 2 points, then the
third score is above the mean by 4 points.
A : true
B : false

Correct Answer : A

8 : A sample has a mean of M = 40. If a new score of X = 35 is added to the sample, then the
sample mean would increase.
A : true
B : false


mynursytest.store

,CD
orOreWcNt L
AOnsAwDerT: H
BE Test Bank for Essentials of Statistics for The
Behavioral Sciences 9th Edition Gravetter
9:
A sample has n = 7 scores with a mean of M = 9. If one individual with a score of X = 3 is removed
X X X X X X X X X X X X X X X X X X X X X X X X X X



from the sample, the new mean will be M = 10.
X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




10 : After adding 6 points to every score in a sample, the new mean is found to be M = 18. The mea
X X X X X X X X X X X X X X X X X X X X X X



n for the original sample was M = 24.
X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




11 : Adding a new score to a distribution will always change the value of the mean.
X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




12 : Changing the value of a score in a distribution will always change the value of the mean.
X X X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




13 : A sample of n = 6 scores has a mean of M = 9. If one individual with a score of X = 4 is remov
X X X X X X X X X X X X X X X X X X X X X X X X X X



ed from the sample, the new mean will be M = 10.
X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




14 : A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample, the n
X X X X X X X X X X X X X X X X X X X X X X X X X



ew mean is calculated to be M = 6. The new score was X = 13.
X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




15 : A sample of n = 8 scores has a mean of M = 20. After one score is removed from the sample
X X X X X X X X X X X X X X X X X X X X X X



, the mean is calculated to be M = 23. The removed score must have a value greater than 20.
X X X X X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




16 : A sample of n = 10 scores has a mean of 50. A second sample has n = 5 scores and M=
X X X X X X X X X X X X X X X X X X X X X X



60. If the two samples are combined, the combined sample mean will be greater than 55. A : tr
X X X X X X X X X X X X X X X X X X



ue
mynursytest.store

, BD:Of aWl sNeL O A D THETestBankforEssentialsofStatisticsforThe Behavior
X
X X X X X X X X X X



al Sciences 9th Edition Gravetter
X X X X




Correct Answer : B X X X




17 : For a 100-point exam, a score of X = 65 is definitely above the median.
X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




18 : If a sample has an odd number of scores, at least one individual will have a score exactly equ
X X X X X X X X X X X X X X X X X X X



al to the median.
X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




19 : A sample has n = 5 scores: 2, 4, 5, 8, and 11. The median for the sample is 6.5.
X X X X X X X X X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : B X X X




20 : For any distribution of scores, at least one individual will have a score exactly equal to the me
X X X X X X X X X X X X X X X X X X



an.
A : true
X X



B : false
X X




Correct Answer : B X X X




21 : It is possible for a distribution to have more than one mode.
X X X X X X X X X X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




22 : It is possible to have a distribution of scores where no individual has a score exactly equal to th
X X X X X X X X X X X X X X X X X X X



e mode.
X



A : true
X X



B : false
X X




Correct Answer : B X X X




23 : For a set of scores measured on an ordinal scale, the median is preferred to the mean as a mea
X X X X X X X X X X X X X X X X X X X X



sure of central tendency.
X X X



A : true
X X



B : false
X X




Correct Answer : A X X X




24 : There are situations for which it is either impossible to compute a mean or the mean does not
X X X X X X X X X X X X X X X X X X X



provide a central, representative value.
X X X X



A : true
X X




mynursytest.store