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Test Review

# Test Review - Test Review Exam 2 Stuff that is note worthy...

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Test Review Exam 2

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Stuff that is note worthy: Hypothesis Testing Sample Mean Proportion Two Sample Means Confidence Intervals: Proportion and Sample Mean Pooled Proportions Standard Error Critical Values/Test Statistic Z’s P-Values Strong Evidence Weak Evidence Type 1 vs. Type 2 Errors Totally Random Digits
Hypothesis Testing: Sample Mean NBC TV news reported in a segment on the price of gasoline that the mean price nationwide is \$1.25 per gallon for self-serve regular unleaded. A random sample of 35 stations in the Salt Lake City area revealed that the mean price was \$1.27 per gallon and the standard deviation was \$0.05 per gallon. At the .02 level of significance, can we conclude that the price of gasoline is significantly higher than \$1.25 in the Salt Lake City area?

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Calculate the Z-Test Statistic. Is it one tail or two tail? What is (are) the critical value(s)?
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Test Review - Test Review Exam 2 Stuff that is note worthy...

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