MATH 200 UCI Probability Statistics Null Hypothesis Questions
Question Description
Show ALL work. If using a calculator, state the programs you are using. Round answers to
three decimal places. Use appropriate notation.
It is believed that 82% of all students enrolled in Statistics will pass with a grade of C or better. Among
one Statistics class last semester, 46 earned a C or better while 4 earned lower than a C.
Use this information to test the claim at the ? = 0.08 significance level.
1. State the hypotheses and indicate which is the claim.
2. Find the critical value(s).
3. Find the test statistic and p-value.
4. State your conclusion. What does the conclusion tell us about the pass rate in Statistics classes?
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