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Chapter 13: Q. 57 (page 767)

What is the FStatistic?

Short Answer

Expert verified

The F Statistic is 0.7414.

Step by step solution

01

Given information

The F-statistic state that an entire ratio of two variances. Larger values denote a perfect distribution. Variances calculate dispersion, or how outlying the data are spread from the mean.

02

Explanation

The value of F-Statistic is calculated by using Ti-83 calculator. The method is shown below:
Click on STAT 鈫�arrow over the TESTS 鈫�arrow down to 2-sample F-test 鈫�ENTER 鈫� arrow to the Stats and press
ENTER. It will be:

03

Explanation

Then, enter the values of Sx1=23.8,n1=35,Sx2=32.1, and n2=35then press ENTER. It will be:

04

Explanation

Then, select the hypothesis as H1:蟽1<蟽2and press ENTER. Then arrow down to calculate, press ENTER. Then it will be,

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Most popular questions from this chapter

Two coworkers commute from the same building. They are interested in whether or not there is any variation in the time it takes them to drive to work. They each record their times for 20commutes. The first worker鈥檚 times have a variance of 12.1. These coworkers' times have a variance of 16.9. The first worker thinks that he is more consistent with his commute times. Test the claim at the 10% level. Assume that commute times are normally distributed. What is n?

62. degrees of freedom -denominator: df(denom)=-----

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Use a significance level of 5%, and determine if there is a difference in GPA among the teams .

A video game developer is testing a new game on three different groups. Each group represents a different target market for the game. The developer collects scores from a random sample from each group. The results are shown in the Table.

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At the 10%significance level, are the scores among the different groups different?

Suppose a group is interested in determining whether teenagers obtain their driver's licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from five teenagers in each region of the country. The numbers represent the age at which teenagers obtained their driver's licenses

NortheastSouthWestCentralEast16.316.916.416.217.116.116.516.516.617.216.416.416.616.516.616.516.216.116.416.8x炉=s2=

伪=0.01

a) Decision = _____

b) Conclusion = _____
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