Bundle: Statistics for the Behavioral Sciences, Loose-leaf Version, 10th + MindTap Psychology, 1 term (6 months) Printed Access Card
10th Edition
ISBN: 9781337128995
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 5, Problem 5P
For a population with
- , find the a-score for each of the following X values. (Note: You probably will need to use a formula and a calculator to find these values.)
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An environmental research team is studying the daily rainfall (in millimeters) in a region over 100 days.
The data is grouped into the following histogram bins:
Rainfall Range (mm) Frequency
0-9.9
15
10 19.9
25
20-29.9
30
30-39.9
20
||40-49.9
10
a) If a random day is selected, what is the probability that the rainfall was at least 20 mm but less than 40
mm?
b) Estimate the mean daily rainfall, assuming the rainfall in each bin is uniformly distributed and the
midpoint of each bin represents the average rainfall for that range.
c) Construct the cumulative frequency distribution and determine the rainfall level below which 75% of the
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Chapter 5 Solutions
Bundle: Statistics for the Behavioral Sciences, Loose-leaf Version, 10th + MindTap Psychology, 1 term (6 months) Printed Access Card
Ch. 5 - What information is provided by the sign (+/)of a...Ch. 5 - A distribution has a standard deviation of =10....Ch. 5 - For a distribution with a standard deviation of...Ch. 5 - For a population with =60and =12 Find the a-score...Ch. 5 - For a population with =40and =11 , find the...Ch. 5 - For a population with a mean of =100and a standard...Ch. 5 - A population has a mean of =60and a standard...Ch. 5 - Find the a-score corresponding to a score of X=45...Ch. 5 - Find the X value corresponding to z=0.25 of the...Ch. 5 - A score that is 6 points below the mean...
Ch. 5 - A score that is 9 points above the mean...Ch. 5 - For a population with a standard deviation of (...Ch. 5 - For a population with a mean of =70, a score of...Ch. 5 - In a population distribution, a score of...Ch. 5 - For each of the following populations, would a...Ch. 5 - A distribution of exam scores has a mean of =78....Ch. 5 - For each of the following, identify the exam score...Ch. 5 - A distribution with a mean of =38and a standard...Ch. 5 - A distribution with a mean of =76and a standard...Ch. 5 - A population consists of the following N=5scores:...Ch. 5 - A sample has a mean of M=30and a standard...Ch. 5 - A sample has a mean of M=25and a standard...Ch. 5 - For a sample with a standard deviation of s=8, a...Ch. 5 - For a sample with a mean of M=51, a score of...Ch. 5 - In a sample distribution, X=56corresponds to...Ch. 5 - A sample consists of the following n=7 scores: 5,...
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