Katie Sr Yr stats final review pt 01

What kind of test is used when testing a single sample proportion?

• 1-sample t-test

• Chi-square test for variance

• 1-proportion z-test

• Wilcoxon signed-rank test

What kind of test is used when testing a sample mean and the population standard deviation is known?

• 1-proportion z-test

• 1-sample z-test

• Chi-square goodness-of-fit

• 1-sample t-test

What kind of test is used to test if a sample has a different variance or standard deviation than the population?

• Chi-square test for variance

• 1-proportion z-test

• 1-sample t-test

• Sign test

What kind of test is used when testing a sample mean and the population standard deviation is unknown?

• 1-sample t-test

• Chi-square test for independence

• 1-proportion z-test

• 1-sample z-test

A normal curve has a ________ shaped graph.

Values that are used as “cut offs” and are typically looked up in tables and compared to test statistics are ______ values.

To determine if the results of a hypothesis test are significant, we look at the ______.

A stronger correlation will have an r-value that is close to ______.

The accuracy and generalizability of a regression equation’s prediction is affected by the ______ and ______ of the sample data.

A negative correlation is when one variable ______ as the other ______.

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