A random sample of six advertisements taken from Scientific American had the following fog indices (an index used to measure the reading difficulty of a written text):  15.75       11.55       11.16        9.92         9.23       8.2        An independent random sample of six advertisements taken from Sports Illustrated had the following fog indices:   9.17         8.44          6.10       5.78           5.58      5.36        Assume that the population distributions are normal and test the equality of variances against a two-sided               alternative for 10% significance level.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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  1. A random sample of six advertisements taken from Scientific American had the following fog indices (an index used to measure the reading difficulty of a written text):

 15.75       11.55       11.16        9.92         9.23       8.2

       An independent random sample of six advertisements taken from Sports Illustrated had the following fog indices:

  9.17         8.44          6.10       5.78           5.58      5.36

       Assume that the population distributions are normal and test the equality of variances against a two-sided       

       alternative for 10% significance level.

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