Question 1

What is a standard score?

Accepted Answer

A standard score represents the number o

Question 2

An instructor has given his final exam and scores that are normally distributed.Nancy scores a 90 and Ronald scores a 75.The class mean on the exam was 85 and the standard deviation was 36.
What is Nancy's z score?

Accepted Answer

A) 0.14 
B) -0.14 
C) 0.83 
D) -0.83 
A) 0.14 
B) -0.14 
C) 0.83 
D) -0.83

Question 3

A percentile rank reflects a(n)_____ measure of relative standing.

Accepted Answer

A) nominal 
B) ordinal 
C) interval 
D) ratio 
A) nominal 
B) ordinal 
C) interval 
D) ratio

Question 4

The standard deviation of a set of standard scores in a distribution is _____.

Accepted Answer

A) 100 
B) 50 
C) 1 
D) 0 
A) 100 
B) 50 
C) 1 
D) 0

Question 5

In general,observations are meaningful only in relation to other observations.

Accepted Answer

A) True 
 B)False

Question 6

If your standard score on the exam is -1,you are 1 point below the mean.

Accepted Answer

A) True 
 B)False

Question 7

The process of standardizing scores changes the basic shape of the distribution.

Accepted Answer

A) True 
 B)False

Question 8

Given a normal distribution,what z score would correspond to the 95th percentile?

Accepted Answer

A) 1.96 
B) 1 
C) 2 
D) 1.645 
A) 1.96 
B) 1 
C) 2 
D) 1.645

Question 9

What is the standard score of a raw score of 30 from a set of 20 scores where the mean is 15 and the standard deviation is 5?

Accepted Answer

A) 1 
B) -1 
C) 3 
D) -3 
A) 1 
B) -1 
C) 3 
D) -3

Question 10

Jill took an English test and is -1 standard units below the class mean.What was her raw score on the test?

Accepted Answer

She is 1 s

Question 11

The median corresponds to the 50th percentile.

Accepted Answer

A) True 
 B)False

Question 12

Standardization affects the central tendency,variability,skewness,and kurtosis of the scores.

Accepted Answer

A) True 
 B)False

Question 13

Jeff was told that on his GRE is scored in the 85th percentile which means____________________.

Accepted Answer

85% of the

Question 14

The sum of a set of standard scores for a distribution will _____ equal 0.

Accepted Answer

A) always 
B) never 
C) sometimes 
D) cannot be determined 
A) always 
B) never 
C) sometimes 
D) cannot be determined

Question 15

An instructor has given his final exam,and scores are approximately normally distributed.Nancy scores a 90 and Ronald scores a 75.The characteristics of the distribution are as follows:
= 85,
S2 = 36.What is Ronald's T score (for a mean of 50 and a standard deviation of 10)?

Accepted Answer

A) 33.3 
B) 63.7 
C) 52.8 
D) 47.2 
A) 33.3 
B) 63.7 
C) 52.8 
D) 47.2

Question 16

Approximately what raw score in a normal distribution would correspond to a z score of 1.56 with
= 75 and s2 = 4?

Accepted Answer

A) 78 
B) 81 
C) 72 
D) 69 
A) 78 
B) 81 
C) 72 
D) 69

Question 17

A negative standard score of -1 means you____________________.

Accepted Answer

Score 1 st

Question 18

A standard score of _____ indicates that the original score is equal to the mean.

Accepted Answer

A) 0 
B) +1.00 
C) -1.00 
D) 1.96 
A) 0 
B) +1.00 
C) -1.00 
D) 1.96

Question 19

Most empirical data is normally distributed.

Accepted Answer

A) True 
 B)False

Question 20

Suppose an approximately normal distribution of doctors' salaries finds µ = $150,000 and ó = $25,000.What salary level would define the 77th percentile?

Accepted Answer

A) $180,000 
B) $168,000 
C) $175,000 
D) $158,250 
A) $180,000 
B) $168,000 
C) $175,000 
D) $158,250

What is a standard score?

An instructor has given his final exam and scores that are normally distributed.Nancy scores a 90 and Ronald scores a 75.The class mean on the exam was 85 and the standard deviation was 36. What is Nancy's z score?

A percentile rank reflects a(n)_____ measure of relative standing.

The standard deviation of a set of standard scores in a distribution is _____.

In general,observations are meaningful only in relation to other observations.

If your standard score on the exam is -1,you are 1 point below the mean.

The process of standardizing scores changes the basic shape of the distribution.

Given a normal distribution,what z score would correspond to the 95th percentile?

What is the standard score of a raw score of 30 from a set of 20 scores where the mean is 15 and the standard deviation is 5?

Jill took an English test and is -1 standard units below the class mean.What was her raw score on the test?

The median corresponds to the 50th percentile.

Standardization affects the central tendency,variability,skewness,and kurtosis of the scores.

Jeff was told that on his GRE is scored in the 85^th percentile which means____________________.

The sum of a set of standard scores for a distribution will _____ equal 0.

An instructor has given his final exam,and scores are approximately normally distributed.Nancy scores a 90 and Ronald scores a 75.The characteristics of the distribution are as follows: = 85, S² = 36.What is Ronald's T score (for a mean of 50 and a standard deviation of 10)?

Approximately what raw score in a normal distribution would correspond to a z score of 1.56 with = 75 and s² = 4?

A negative standard score of -1 means you____________________.

A standard score of _____ indicates that the original score is equal to the mean.

Most empirical data is normally distributed.

Suppose an approximately normal distribution of doctors' salaries finds µ = $150,000 and ó = $25,000.What salary level would define the 77th percentile?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 4: Percentiles percentile Ranks standard Scores and the Normal Distribution

What is a standard score?

An instructor has given his final exam and scores that are normally distributed.Nancy scores a 90 and Ronald scores a 75.The class mean on the exam was 85 and the standard deviation was 36. What is Nancy's z score?

A percentile rank reflects a(n)_____ measure of relative standing.

The standard deviation of a set of standard scores in a distribution is _____.

In general,observations are meaningful only in relation to other observations.

If your standard score on the exam is -1,you are 1 point below the mean.

The process of standardizing scores changes the basic shape of the distribution.

Given a normal distribution,what z score would correspond to the 95th percentile?

What is the standard score of a raw score of 30 from a set of 20 scores where the mean is 15 and the standard deviation is 5?

Jill took an English test and is -1 standard units below the class mean.What was her raw score on the test?

The median corresponds to the 50th percentile.

Standardization affects the central tendency,variability,skewness,and kurtosis of the scores.

Jeff was told that on his GRE is scored in the 85th percentile which means____________________.

The sum of a set of standard scores for a distribution will _____ equal 0.

An instructor has given his final exam,and scores are approximately normally distributed.Nancy scores a 90 and Ronald scores a 75.The characteristics of the distribution are as follows: = 85, S2 = 36.What is Ronald's T score (for a mean of 50 and a standard deviation of 10)?

Approximately what raw score in a normal distribution would correspond to a z score of 1.56 with = 75 and s2 = 4?

A negative standard score of -1 means you____________________.

A standard score of _____ indicates that the original score is equal to the mean.

Most empirical data is normally distributed.

Suppose an approximately normal distribution of doctors' salaries finds µ = $150,000 and ó = $25,000.What salary level would define the 77th percentile?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Jeff was told that on his GRE is scored in the 85^th percentile which means____________________.

An instructor has given his final exam,and scores are approximately normally distributed.Nancy scores a 90 and Ronald scores a 75.The characteristics of the distribution are as follows: = 85, S² = 36.What is Ronald's T score (for a mean of 50 and a standard deviation of 10)?

Approximately what raw score in a normal distribution would correspond to a z score of 1.56 with = 75 and s² = 4?