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Statistical Literacy When using the F distribution to test

Understandable Statistics | 9th Edition | ISBN: 9780618949922 | Authors: Charles Henry Brase, Corrinne Pellillo Brase ISBN: 9780618949922 213

Solution for problem 2 Chapter 11.4

Understandable Statistics | 9th Edition

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Understandable Statistics | 9th Edition | ISBN: 9780618949922 | Authors: Charles Henry Brase, Corrinne Pellillo Brase

Understandable Statistics | 9th Edition

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Problem 2

Statistical Literacy When using the F distribution to test two variances, is it essential that each of the two populations be normally distributed? Would it be all right if the populations had distributions that were mound-shaped and more or less symmetrical?

Step-by-Step Solution:
Step 1 of 3

Parameter­ Population Proportion, a fixed quantity. Population Proportion = p Sample Proportion = p hat (estimate) number of successes over the sample size Will modify from each sample Only estimate of parameter Sampling Distribution of Statistics Values of the figure from all potential sample size Describing quantitative number Center­ mean of all values of the parameter Spread­ increasing of sample size means the spread is decreasing Shape­ sample size increases the graph looks more as a bell­shaped Caveats  Must have a symbolic tester  N must be “big enough” Normal Distribution  Draw curve and axis  Area that signifies probability 

Step 2 of 3

Chapter 11.4, Problem 2 is Solved
Step 3 of 3

Textbook: Understandable Statistics
Edition: 9
Author: Charles Henry Brase, Corrinne Pellillo Brase
ISBN: 9780618949922

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Statistical Literacy When using the F distribution to test