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2 cards from this section. Quick, good the night before a test.
What is the formula for a Single Mean Test?
Look for the sample mean, population mean, and standard deviation in the formula.
When would you use a Difference of Means Test?
Think about scenarios where you want to compare two different groups.
What is the primary purpose of a Single Mean Test?
Focus on understanding the application of the test.
True or False: The Z-test can be used for small samples.
Think about sample sizes and test types.
You conduct a study with two groups. Group A (n=100, \bar{x}=85, \sigma=10) and Group B (n=100, \bar{x}=82, \sigma=15). Using a 0.05 significance level, determine whether the difference in means is significant.
Don't forget to compute the combined standard deviations!
A company claims their new training program increases productivity. The average productivity before was 150 units (n=40). Post-training, the average is 160 (\sigma=20). Conduct a test to evaluate this claim.
Make sure to check your standard deviation and sample sizes!
4 more questions in this section. Enroll free to practise them all.
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