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

A set of scores that is positively skewed will become normally distributed after they have been converted to standard scores.

(True/False)

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Question 61

Knowing that a set of scores approximates a normal distribution allows us to make probability statements with respect to those scores,given that we know the mean and standard deviation.

(True/False)

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Question 62

The proportion of scores occurring between standard scores of 0 and -1 is less than the proportion of scores occurring between standard scores of 0 and +1.

(True/False)

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Question 63

What raw score in a normal distribution would correspond to a z score of 1.56 with a mean equal to 75 and standard deviation of 2?

(Multiple Choice)

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Question 64

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

(Multiple Choice)

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Question 65

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

(Multiple Choice)

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Question 66

Which of the following is a true property of a set of standard scores?

(Multiple Choice)

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Question 67

Another name for a standard score in a normal distribution is _____.

(Multiple Choice)

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Question 68

In a normal distribution,approximately _____ of all scores fall between standard scores of -1 and +1.

(Multiple Choice)

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Question 69

A ____________________is based on a normal distribution.

(Short Answer)

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Question 70

Given a normal distribution with a mean of 50 and a standard deviation of 2,what is the z score of a raw score of 46?

(Multiple Choice)

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Question 71

A standard score converts a score from its original,or raw,form to a form that takes into consideration its standing relative to the mean and standard deviation of the entire distribution of scores.

(True/False)

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Question 72

All normal distributions are _____ in nature.

(Multiple Choice)

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Question 73

Average family watches 40 hours of TV a week and the SD is 4.Jane says she watches about 28 hours of TV a week and her variance is 4.What is her Standard score?

(Multiple Choice)

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Question 74

A set of scores that is platykurtic will still be platykurtic after they have been converted to standard scores.

(True/False)

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Question 75

What proportion of scores in a normal distribution lies between z scores of -1.55and +1.55?

(Multiple Choice)

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Question 76

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

(True/False)

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Question 77

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

(Multiple Choice)

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Question 78

A negative standard score indicates that the original score is less than the mean.

(True/False)

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Question 79

The percentage of scores in the distribution that occur at or below a given value,X,is the percentile of that value.

(True/False)

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Question 80

Showing 61 - 80 of 176

A set of scores that is positively skewed will become normally distributed after they have been converted to standard scores.

Knowing that a set of scores approximates a normal distribution allows us to make probability statements with respect to those scores,given that we know the mean and standard deviation.

The proportion of scores occurring between standard scores of 0 and -1 is less than the proportion of scores occurring between standard scores of 0 and +1.

What raw score in a normal distribution would correspond to a z score of 1.56 with a mean equal to 75 and standard deviation of 2?

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

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

Which of the following is a true property of a set of standard scores?

Another name for a standard score in a normal distribution is _____.

In a normal distribution,approximately _____ of all scores fall between standard scores of -1 and +1.

A ____________________is based on a normal distribution.

Given a normal distribution with a mean of 50 and a standard deviation of 2,what is the z score of a raw score of 46?

A standard score converts a score from its original,or raw,form to a form that takes into consideration its standing relative to the mean and standard deviation of the entire distribution of scores.

All normal distributions are _____ in nature.

Average family watches 40 hours of TV a week and the SD is 4.Jane says she watches about 28 hours of TV a week and her variance is 4.What is her Standard score?

A set of scores that is platykurtic will still be platykurtic after they have been converted to standard scores.

What proportion of scores in a normal distribution lies between z scores of -1.55and +1.55?

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

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 indicates that the original score is less than the mean.

The percentage of scores in the distribution that occur at or below a given value,X,is the percentile of that value.

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

A set of scores that is positively skewed will become normally distributed after they have been converted to standard scores.

Knowing that a set of scores approximates a normal distribution allows us to make probability statements with respect to those scores,given that we know the mean and standard deviation.

The proportion of scores occurring between standard scores of 0 and -1 is less than the proportion of scores occurring between standard scores of 0 and +1.

What raw score in a normal distribution would correspond to a z score of 1.56 with a mean equal to 75 and standard deviation of 2?

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

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

Which of the following is a true property of a set of standard scores?

Another name for a standard score in a normal distribution is _____.

In a normal distribution,approximately _____ of all scores fall between standard scores of -1 and +1.

A ____________________is based on a normal distribution.

Given a normal distribution with a mean of 50 and a standard deviation of 2,what is the z score of a raw score of 46?

A standard score converts a score from its original,or raw,form to a form that takes into consideration its standing relative to the mean and standard deviation of the entire distribution of scores.

All normal distributions are _____ in nature.

Average family watches 40 hours of TV a week and the SD is 4.Jane says she watches about 28 hours of TV a week and her variance is 4.What is her Standard score?

A set of scores that is platykurtic will still be platykurtic after they have been converted to standard scores.

What proportion of scores in a normal distribution lies between z scores of -1.55and +1.55?

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

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 indicates that the original score is less than the mean.

The percentage of scores in the distribution that occur at or below a given value,X,is the percentile of that value.

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

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