SRMII: Unit 3 1 sample t-test

Which represents the coefficient of determination?

Why would you use a T-Test instead of a Z Test?

This states that there is no change between the sample mean and the population mean.  

This is the null hypothesis for a correlation

What is the probability of making a Type I error?

A type 1 error occurs when...

What is the form of test used with a directional hypothesis

T or F: Correlation goes from -1 to 1

When conducting a confidence interval we always use what type of critical value?

What is the confidence interval?

In which hypothesis do the words "less than" appear?

What is a type 1 error?

What is the t_obt?

Calculate Standard error of the mean

If you are given the population mean and population standard deviation, what test do you run?

What is a confidence interval?

What describes the probability of a Type I error?

According to these results, we reject the null and find support that my students are higher on conscientiousness

What is the z score

What test will you perform?

Effect size refers to

What test will you perform?

Is this a 1 tail or 2 tail test?

Calculate Standard error of the mean

What hypothesis is this?

A p value of <.05 means

T or F: as sample size decreases, the t-distribution becomes more normal

What is Z critical for a 95% confidence interval?

The Null hypothesis always has an equal sign in it.

what is the formula for degrees of freedom in a 1 sample t test?

What Hypothesis is this?

Is this a 1 tail or 2 tail test?

Do we reject the null? Look up crit. Use the table