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Testing of hypothesis

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Advertisements claims that learning a technique will improve the test scores for students
The scores of the ten randomly selected students are recorded before and after the technique. For each randomly selected sample, assume the distribution of the population is norma,=l.
At a=0.10 is there enough evidence to conclude that the technique improves test score?
Ho"μd ≥;0, Ha:μd<0

Student: 1
Before Techni 68
After Techn 73

What is the critical value?
What is the standardized test statistic
At 0.10 is the enough evidence?

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Solution Summary

The solution tests if learning the techniques improves the score.

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