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

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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 approximate percentile rank?

(Multiple Choice)

4.9/5

(75)

Question 101

One property of normal distributions is that the proportion of scores that occur _____ is the same in all such distributions.

(Multiple Choice)

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Question 102

Jack told his mom that he was 1.2 standard units above the mean in his math class.What is his original score if the class mean was 78 and the SD=3?

(Short Answer)

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Question 103

All normal distributions reflect empirically real phenomena.

(True/False)

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Question 104

What is a standard score?

(Essay)

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Question 105

The percentile rank is ____________________.

(Short Answer)

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Question 106

Z-scores are based on distributions that are skewed.

(True/False)

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Question 107

The scores below represent the results of an in-class quiz worth 10 points. What is the cumulative frequency associated with a score of 6?

(Multiple Choice)

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Question 108

What proportion of scores in a normal distribution are above z = 1.96 and below z = -2.17?

(Multiple Choice)

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Question 109

What proportion of scores are equal to a SD=1 in a normal distribution?

(Multiple Choice)

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Question 110

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1.96 and +196.

(Multiple Choice)

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Question 111

A distribution in which the mean is 3.00 and the median and mode are 3 is____________________.

(Short Answer)

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Question 112

The score value corresponding to a given percentile rank is referred to as a(n)_____.

(Multiple Choice)

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Question 113

John scores an 85 on his psychology exam.The other relevant characteristics of the distribution are as follows: = 75,s² = 4.What is John's standard score?

(Multiple Choice)

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(77)

Question 114

Percentile ranks must always be interpreted relative to the _____ upon which the scores are based.

(Multiple Choice)

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Question 115

Assume you have a normal distribution with a mean of 5 and a standard deviation of 2.What proportion of scores fall between the raw scores of 7 and 9?

(Multiple Choice)

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(81)

Question 116

Standardization _____ the skewness and kurtosis of the scores.

(Multiple Choice)

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Question 117

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

(Multiple Choice)

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(70)

Question 118

A negative standard score of -1 means you____________________.

(Short Answer)

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(71)

Question 119

The score value corresponding to a percentile rank of 60 is referred to as the 60th percentile.

(True/False)

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Question 120

Showing 101 - 120 of 176

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 approximate percentile rank?

One property of normal distributions is that the proportion of scores that occur _____ is the same in all such distributions.

Jack told his mom that he was 1.2 standard units above the mean in his math class.What is his original score if the class mean was 78 and the SD=3?

All normal distributions reflect empirically real phenomena.

What is a standard score?

The percentile rank is ____________________.

Z-scores are based on distributions that are skewed.

The scores below represent the results of an in-class quiz worth 10 points. What is the cumulative frequency associated with a score of 6?

What proportion of scores in a normal distribution are above z = 1.96 and below z = -2.17?

What proportion of scores are equal to a SD=1 in a normal distribution?

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1.96 and +196.

A distribution in which the mean is 3.00 and the median and mode are 3 is____________________.

The score value corresponding to a given percentile rank is referred to as a(n)_____.

John scores an 85 on his psychology exam.The other relevant characteristics of the distribution are as follows: = 75,s² = 4.What is John's standard score?

Percentile ranks must always be interpreted relative to the _____ upon which the scores are based.

Assume you have a normal distribution with a mean of 5 and a standard deviation of 2.What proportion of scores fall between the raw scores of 7 and 9?

Standardization _____ the skewness and kurtosis of the scores.

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

A negative standard score of -1 means you____________________.

The score value corresponding to a percentile rank of 60 is referred to as the 60th percentile.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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

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 approximate percentile rank?

One property of normal distributions is that the proportion of scores that occur _____ is the same in all such distributions.

Jack told his mom that he was 1.2 standard units above the mean in his math class.What is his original score if the class mean was 78 and the SD=3?

All normal distributions reflect empirically real phenomena.

What is a standard score?

The percentile rank is ____________________.

Z-scores are based on distributions that are skewed.

The scores below represent the results of an in-class quiz worth 10 points. What is the cumulative frequency associated with a score of 6?

What proportion of scores in a normal distribution are above z = 1.96 and below z = -2.17?

What proportion of scores are equal to a SD=1 in a normal distribution?

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1.96 and +196.

A distribution in which the mean is 3.00 and the median and mode are 3 is____________________.

The score value corresponding to a given percentile rank is referred to as a(n)_____.

John scores an 85 on his psychology exam.The other relevant characteristics of the distribution are as follows: = 75,s2 = 4.What is John's standard score?

Percentile ranks must always be interpreted relative to the _____ upon which the scores are based.

Assume you have a normal distribution with a mean of 5 and a standard deviation of 2.What proportion of scores fall between the raw scores of 7 and 9?

Standardization _____ the skewness and kurtosis of the scores.

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

A negative standard score of -1 means you____________________.

The score value corresponding to a percentile rank of 60 is referred to as the 60th percentile.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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

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 approximate percentile rank?

John scores an 85 on his psychology exam.The other relevant characteristics of the distribution are as follows: = 75,s² = 4.What is John's standard score?