Stats Review

Pearson's correlation coefficient (r) tells us the strength, direction, and ___________ of an association

The Central limit Theorem is applicable when checking the Large Counts Condition for which type of test?

Variance is related to standard deviation by which of the following:

We reject the null hypothesis if the p-value of the test is __________ the significance level

Statistical Power is the probability of a significance test to avoid which type of error?

A researcher conducts a study on a new medical treatment. A p-value of .002 suggests that

This is the name of a treatment given to the control group which has no actual effect

A certain chance game costs $2 to play and has an expected value of -$0.10. The expected value means:

Under what circumstances would a Chi-Squared Test for Homogeneity be appropriate

When finding the difference of p1 and p2, the variance of the difference is equal to:

You have 6 pairs of pants, 8 shirts, and 4 pairs of shoes. How many outfits can you arrange?

Beta (β) is the probability of type I error

What is the null hypothesis for a significance test comparing two proportions p1 and p2?

A statistical test yields ap-value of .31. Given this p-value, we should accept the null hypothesis

Which of the folling is NOT a characteristic of the normal distribution

What is the critical value (z*) associated with a 95% confidence interval?

In a completely randomized experimental design, random assignment allows us to:

In t-test procedures, we use the t-distribution instead of the normal distribution because

You can increase the power of a signifcance test by

A residul plot suggests that a linear model is appropriate under which of the following circumstances

Which type of significance test is appropriate for testing an association between two categorical variables?

A type II error occurs when a significance test fails to reject a false null hypthesis

A p-value of .12 in a statistical test would lead us to believe that our result is statistically significant

Karl Marx is considered the father of modern statistics and hypothesis testing

What is the most ideal way to collect sample data for an observational study?

A student received an email from their teacher saying that their exam score had a z-score of 2.1. This student will be

Assuming each free throw is independent, what is the probability that a 70% FT shooter misses 2 shots in a row?

The shape of the sampling distribution of sample means is normal if the sample size is greater than or equal to:

The 10% condition for a significance test is required to ensure that

The coefficient of determination is commonly denoted by: