3. A professor of statistics teaches one class through conventional method and the other class with the use of computers. Sometimes, those taught the conventional method got high scores and there are times that those taught with computers outshine in the subject. Taking a sample of 15 corrected papers from the first class and 10 from the second class, the professor wants to test, at 1% level of significance, that those taught with computers perform better. The sample mean for the conventional method is 84 and 92 for the second class. The sample standard deviation for the conventional method is 8 and 5 for the second class. Run the test for the professor's claim.

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3. A professor of statistics teaches one class through conventional method and the other
class with the use of computers. Sometimes, those taught the conventional method got
high scores and there are times that those taught with computers outshine in the subject.
Taking a sample of 15 corrected papers from the first class and 10 from the second class,
the professor wants to test, at 1% level of significance, that those taught with computers
perform better. The sample mean for the conventional method is 84 and 92 for the
second class. The sample standard deviation for the conventional method is 8 and 5 for
the second class. Run the test for the professor's claim.
Transcribed Image Text:3. A professor of statistics teaches one class through conventional method and the other class with the use of computers. Sometimes, those taught the conventional method got high scores and there are times that those taught with computers outshine in the subject. Taking a sample of 15 corrected papers from the first class and 10 from the second class, the professor wants to test, at 1% level of significance, that those taught with computers perform better. The sample mean for the conventional method is 84 and 92 for the second class. The sample standard deviation for the conventional method is 8 and 5 for the second class. Run the test for the professor's claim.
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