Statistics Jeopardy! 2

What is the best Null Hypothesis?

The smaller a p-value is, the less likely your result is due to _?_.

Pick the best t-Test

A large p-value shows _?_ evidence against the null hypothesis.

The F-test is used to test __ or __ variance.

A scatterplot is used to graph _?_ data.

The slope of a regression line tells us

You're comparing two means with two dependent data samples. You should use a _?_ t-test.

Pick the best t-Test

What does the "p" in p-value stand for?

You're comparing before and after class test results. You should use a _?_ t-test.

What is the best Alternative Hypothesis?

The null hypothesis is not rejected. What % of the means fall w/in 2 standard errors?

You're comparing IMSA class SAT scores to the national average. You should use a _?_ t-test.

You're comparing two means with two independent data samples. You should use a _?_ t-test.

What is the best Null Hypothesis?

A t-distribution is __ and __ than a normal distribution.

If the p-value is less than 0.05, a scientist _?_ the null hypothesis.

What two minimal stats do you need to draw a Normal Distribution Curve?

As the degrees of freedom increase, a t-distribution looks more like the normal distribution.

You're comparing two means with two independent data samples. What do you do first?

You're comparing two means with one data sample. You should use a _?_ t-test.

Which is NOT a characteristic of a Normal Curve?

Which t-distribution characteristic(s) is(are) NOT different from a Normal Curve.

For a linear regression, R-squared indicates