Statistics for Psychology
Statistics for Psychology
6th Edition
ISBN: 9780205258154
Author: Arthur Aron Ph.D., Elaine N. Aron Ph.D., Elliot Coups Ph.D., Cole Publishing
Publisher: PEARSON
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Concept explainers

Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…
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Chapter 5, Problem 1.1HD
To determine

Explain the distribution of means.

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Explanation of Solution

Distribution of means:

The distribution of means denotes the probability distribution of the mean values for a large number of the samples that are randomly taken from a single population, each having a constant sample size.

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Chapter 5 Solutions

Statistics for Psychology

Ch. 5 - Prob. 1.1HDCh. 5 - Explain how you could create a distribution of...Ch. 5 - (a) Why is the mean of the distribution of means...Ch. 5 - Write the formula for the variance of the...Ch. 5 - (a) What is the standard error? (b) Why does it...Ch. 5 - A population of individuals that follows a normal...Ch. 5 - How is hypothesis testing with a sample of more...Ch. 5 - How do you find the Z score for the sample’s mean...Ch. 5 - A team of researchers predict that showing a...Ch. 5 - (a) What is the best estimate of a population...
Ch. 5 - (a) What number is used to indicate the accuracy...Ch. 5 - What is a 95% confidence interval? Ch. 5 - A researcher predicts that showing a certain film...Ch. 5 - (a) Why is it wrong to say that the 95% confidence...Ch. 5 - Why is the standard deviation of the distribution...Ch. 5 - For a population that has a standard deviation of...Ch. 5 - For a population that has a standard deviation of...Ch. 5 - ADVANCED TOPIC: Figure the 95% confidence interval...Ch. 5 - ADVANCED TOPIC: Figure the 99% confidence interval...Ch. 5 - For each of the following samples that were given...Ch. 5 - For each of the following samples that were given...Ch. 5 - Lee and colleagues (2000) tested a theory of the...Ch. 5 - ADVANCED TOPIC: Christakis and Fowler (2007)...Ch. 5 - Under what conditions is it reasonable to assume...Ch. 5 - Indicate the mean and the standard deviation of...Ch. 5 - Figure the standard deviation of the distribution...Ch. 5 - ADVANCED TOPIC: Figure the 95% confidence interval...Ch. 5 - ADVANCED TOPIC: Figure the 99% confidence interval...Ch. 5 - For each of the following studies, the samples...Ch. 5 - For each of the following studies, the samples...Ch. 5 - A researcher is interested in whether people are...Ch. 5 - A psychologist is interested in the conditions...Ch. 5 - A government-sponsored telephone counseling...Ch. 5 - Stankiewicz and colleagues (2006) examined how...Ch. 5 - Maier and colleagues (2008) conducted a study to...
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