Question 1

For a distribution with $\bar{X}$ = 50 and $S_{X}$ = 5, find the z-score for a raw score of 50.

Accepted Answer

The answer of For a distribution with $\bar{X}$ = 50...

Question 2

In a z-distribution, the standard deviation will always be

Accepted Answer

A) greater than 1. 
B) less than 1. 
C) equal to 1. 
D) equal to 0. 
A) greater than 1. 
B) less than 1. 
C) equal to 1. 
D) equal to 0.

Question 3

Which of the following statements accurately describes the sampling distribution of means?

Accepted Answer

A) The distribution of several sample means when an infinite number of samples of the same size N are selected from one raw score population. 
B) The distribution of all possible sample means when a given finite number of samples of the same size N are selected from one raw score population. 
C) The distribution of all possible sample means when an infinite number of samples of variously sized Ns are selected from several raw score populations. 
D) The distribution of all possible sample means when an infinite number of samples of the same size N are selected from one raw score population. 
A) The distribution of several sample means when an infinite number of samples of the same size N are selected from one raw score population. 
B) The distribution of all possible sample means when a given finite number of samples of the same size N are selected from one raw score population. 
C) The distribution of all possible sample means when an infinite number of samples of variously sized Ns are selected from several raw score populations. 
D) The distribution of all possible sample means when an infinite number of samples of the same size N are selected from one raw score population.

Question 4

Another term for the standard deviation of the sampling distribution of means is known as

Accepted Answer

A) the standard error of the mean. 
B) the central limit theorem. 
C) relative frequency. 
D) the sampling distribution of means. 
A) the standard error of the mean. 
B) the central limit theorem. 
C) relative frequency. 
D) the sampling distribution of means.

Question 5

For a z-score of 0.63, what is the area beyond the z-score in the tail?

Accepted Answer

The answer of For a z-score of 0.63, what is...

Question 6

Consider the z-scores in parentheses) for the following individuals: Frank 0.5), Zoe -1.2), Jimmy 2.9), and Lilly - 3.3).Which of these individuals would have a) the lowest score, b) highest score, c) and most common score in the distribution?

Accepted Answer

a) Lilly's score is

Question 7

Given a normal distribution, as z­scores' absolute values increase, those z-scores and the raw scores that correspond to them occur

Accepted Answer

A) more frequently. 
B) less frequently. 
C) more frequently at first and then less frequently. 
D) less frequently at first and then more frequently. 
A) more frequently. 
B) less frequently. 
C) more frequently at first and then less frequently. 
D) less frequently at first and then more frequently.

Question 8

In sampling distributions, all the samples contain sets of raw scores

Accepted Answer

A) with the same variance. 
B) from the same population. 
C) with the same mean. 
D) that are representative of the population mean. 
A) with the same variance. 
B) from the same population. 
C) with the same mean. 
D) that are representative of the population mean.

Question 9

For any approximately normal distribution, how can we find the relative frequency of the scores?

Accepted Answer

A) Convert the raw scores to z-scores and then use the standard normal curve. 
B) Draw a graph of the raw scores and approximate the area under the curve. 
C) Convert the raw scores to z-scores and then use the standard error of the mean. 
D) Draw a graph of the raw scores and then use the standard error of the mean. 
A) Convert the raw scores to z-scores and then use the standard normal curve. 
B) Draw a graph of the raw scores and approximate the area under the curve. 
C) Convert the raw scores to z-scores and then use the standard error of the mean. 
D) Draw a graph of the raw scores and then use the standard error of the mean.

Question 10

If raw scores ranging from 1 to 50 represented all the corresponding negative z-scores on the distribution, and raw scores ranging from 50 to 100 represented all the corresponding positive z-scores, what would be the total relative frequency of 50 to 100?

Accepted Answer

The answer of If raw scores ranging from 1 to...

Question 11

Jason's z-score for his time in the 10-K race was −3.If the raw score standard deviation was 5 and the mean running time for the competitors was 55 minutes, what was his raw score?

Accepted Answer

The answer of Jason's z-score for his time in the...

Question 12

For the following set of scores, what is the percentile for a score of 24?

Accepted Answer

The answer of For the following set of scores, what...

Question 13

What is the standard deviation of any z-distribution?

Accepted Answer

The answer of What is the standard deviation of any...

For a distribution with $\bar{X}$ = 50 and $S_{X}$ = 5, find the z-score for a raw score of 50.

In a z-distribution, the standard deviation will always be

Which of the following statements accurately describes the sampling distribution of means?

Another term for the standard deviation of the sampling distribution of means is known as

For a z-score of 0.63, what is the area beyond the z-score in the tail?

Consider the z-scores in parentheses) for the following individuals: Frank 0.5), Zoe -1.2), Jimmy 2.9), and Lilly - 3.3).Which of these individuals would have a) the lowest score, b) highest score, c) and most common score in the distribution?

Given a normal distribution, as zscores' absolute values increase, those z-scores and the raw scores that correspond to them occur

In sampling distributions, all the samples contain sets of raw scores

For any approximately normal distribution, how can we find the relative frequency of the scores?

If raw scores ranging from 1 to 50 represented all the corresponding negative z-scores on the distribution, and raw scores ranging from 50 to 100 represented all the corresponding positive z-scores, what would be the total relative frequency of 50 to 100?

Jason's z-score for his time in the 10-K race was −3.If the raw score standard deviation was 5 and the mean running time for the competitors was 55 minutes, what was his raw score?

For the following set of scores, what is the percentile for a score of 24?

What is the standard deviation of any z-distribution?

Introduction to Statistics and Research

Creating and Using Frequency Distributions

Summarizing Scores With Measures of Central Tendency

Summarizing Scores With Measures of Variability

Using Probability to Make Decisions About Data

Overview of Statistical Hypothesis Testing: the Z-Test

Hypothesis Testing Using the One-Sample T-Test

Hypothesis Testing Using the Two-Sample T-Test

Describing Relationships Using Correlation and Regression

Hypothesis Testing Using the One-Way Analysis of Variance

Understanding the Two-Way Analysis of Variance

Chi Square and Nonparametric Procedures

Filters

Exam 5: Describing Data With Z-Scores and the Normal Curve

For a distribution with Xˉ\bar{X}Xˉ = 50 and SXS_{X}SX​ = 5, find the z-score for a raw score of 50.

In a z-distribution, the standard deviation will always be

Which of the following statements accurately describes the sampling distribution of means?

Another term for the standard deviation of the sampling distribution of means is known as

For a z-score of 0.63, what is the area beyond the z-score in the tail?

Consider the z-scores in parentheses) for the following individuals: Frank 0.5), Zoe -1.2), Jimmy 2.9), and Lilly - 3.3).Which of these individuals would have a) the lowest score, b) highest score, c) and most common score in the distribution?

Given a normal distribution, as z­scores' absolute values increase, those z-scores and the raw scores that correspond to them occur

In sampling distributions, all the samples contain sets of raw scores

For any approximately normal distribution, how can we find the relative frequency of the scores?

If raw scores ranging from 1 to 50 represented all the corresponding negative z-scores on the distribution, and raw scores ranging from 50 to 100 represented all the corresponding positive z-scores, what would be the total relative frequency of 50 to 100?

Jason's z-score for his time in the 10-K race was −3.If the raw score standard deviation was 5 and the mean running time for the competitors was 55 minutes, what was his raw score?

For the following set of scores, what is the percentile for a score of 24?

What is the standard deviation of any z-distribution?

Introduction to Statistics and Research

Creating and Using Frequency Distributions

Summarizing Scores With Measures of Central Tendency

Summarizing Scores With Measures of Variability

Using Probability to Make Decisions About Data

Overview of Statistical Hypothesis Testing: the Z-Test

Hypothesis Testing Using the One-Sample T-Test

Hypothesis Testing Using the Two-Sample T-Test

Describing Relationships Using Correlation and Regression

Hypothesis Testing Using the One-Way Analysis of Variance

Understanding the Two-Way Analysis of Variance

Chi Square and Nonparametric Procedures

Filters

For a distribution with $\bar{X}$ = 50 and $S_{X}$ = 5, find the z-score for a raw score of 50.

Given a normal distribution, as zscores' absolute values increase, those z-scores and the raw scores that correspond to them occur