Answer to Question #1544 in Statistics and Probability for Bonnie Willey
2. The Hypothesis – or the Ha = that the private high school students will have a higher average SAT Score than the
students in the general population.
The Null Hypothesis – or the Ho = that the private high school students will not have a higher average
SAT score than the students of the general population.
From table Zcv=1.645
Zobt< Zcv so we reject this hypothesis. And the conclusion is We have not enough evidence to take the opposite hypothesis.
4. In our case it’s one tailed test and CI=(-inf , 1.645)
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