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Chapter 13: Q.13 (page 764)

What is the Mean Square Factor?

Short Answer

Expert verified

The Mean Square Factor is2496.6.

Step by step solution

01

Given Information

Groups of men from three different areas of the country are to be tested for mean weight.

Group 1 Group 2 Group 3
216202170
198213165
240284182
187228197
176210201
02

Explanation

To calculate sum of square factor, use Ti-83 calculator. For this, click on STAT 鈫�press 1鈫�EDIT, then put the above given weights of different groups data into the list L1,L2andL3. The screenshot is given as below:

03

Explanation

Now-Again press STAT 鈫�arrow over the TESTS 鈫�arrow down to ANOVA 鈫�Press var then select1, press var then select 2, press var then select 3to fill the values of L1,L2andL3. The screen shot is given as below:

04

Explanation

Press ENTER. The screenshot of the obtained output of calculated mean square factor is given as below:

Thus, the mean square factor is2469.6.

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Most popular questions from this chapter

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=0.05

a) Decision: _____

b) Conclusion: _____

Girls from four different soccer teams are to be tested for mean goals scored per game. The entries in the table are the goals per game for the different teams.

Team 1 Team 2 Team 3 Team 4
1203
2304
0214
3413
2402

What isSSbetween?

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=

Enter the data into your calculator or computer.

p-value = _______

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 the10% level. Assume that commute times are normally distributed. What is the F statistic?

Two students are interested in whether or not there is variation in their test scores for math class. There are 15 total math tests they have taken so far. The first student鈥檚 grades have a standard deviation of 38.1. The second student鈥檚 grades have a standard deviation of 22.5. The second student thinks his scores are more consistent.

What is the p-value?
See all solutions

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