Essentials of Statistics for the Behavioral Sciences
8th Edition
ISBN: 9781133956570
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 2.2, Problem 2LCA
To determine
To Find: The apparent limits and the real limits for the bottom interval.
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1. The CLT provides an approximate sampling distribution for the arithmetic average Ỹ of a
random sample Y₁, . . ., Yn f(y). The parameters of the approximate sampling distribution
depend on the mean and variance of the underlying random variables (i.e., the population
mean and variance). The approximation can be written to emphasize this, using the expec-
tation and variance of one of the random variables in the sample instead of the parameters
μ, 02:
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For the following population distributions f, write the approximate distribution of the sample
mean.
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CLT to write an expression approximating the CDF P(Ỹ ≤ x) in terms of µ, σ² and n, and
the standard normal CDF Fz(·).
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Chapter 2 Solutions
Essentials of Statistics for the Behavioral Sciences
Ch. 2.2 - Construct a frequency distribution table for the...Ch. 2.2 - Find each of the following values for the sample...Ch. 2.2 - Prob. 1LCACh. 2.2 - Prob. 2LCACh. 2.2 - Prob. 3LCACh. 2.4 - Sketch a histogram and a polygon showing the...Ch. 2.4 - Describe the shape of the distribution in Exercise...Ch. 2.4 - Prob. 3LCCh. 2.4 - If the results from a research study are presented...Ch. 2.4 - Prob. 5LC
Ch. 2 - Place the following set of n = 20 scores in a...Ch. 2 - Construct a frequency distribution table for the...Ch. 2 - Find each value requested for the distribution of...Ch. 2 - Find each value requested for the distribution of...Ch. 2 - For the following scores, the smallest value is X...Ch. 2 - The following scores are the ages for a random...Ch. 2 - For each of the following samples, determine the...Ch. 2 - What information is available about the scores in...Ch. 2 - Describe the difference in appearance between a...Ch. 2 - For the following set of scores: 8 5 9 6 8 7 4 10...Ch. 2 - Sketch a histogram and a polygon showing the...Ch. 2 - Sketch a histogram showing the distribution of...Ch. 2 - A survey given to a sample of college students...Ch. 2 - Each year the college gives away T shirts to new...Ch. 2 - Gaucher, Friesen, and Kay (2011) found that words...Ch. 2 - Find each or the followin.tt values for the...Ch. 2 - Prob. 17PCh. 2 - Place the following scores in a frequency...Ch. 2 - For the following set of scores: 8 6 7 5 4 10 8 9...Ch. 2 - Fowler and Christakis (2008) report that personal...Ch. 2 - Recent research suggests that the amount of lime...
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