Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
The 95 percent confidence interval is the range of scores that the researcher 95% confident contains the value of the _____ _____.(2 words)
|
population mean
|
|
|
The sampling distribution of t varies with the ____ ___. (2 words or 1 letter)
|
N sample size
|
|
|
The probability of rejecting a false Ho is called _____ (1 word).
|
power
|
|
|
For the one-sample t-test, the null hypothesis states that the sample mean and population mean are equal. The alternative hypothesis states that the means are _______. (2 words)
|
not equal
|
|
|
The one-sample t-test is used to test the difference between a hypothesized population mean and a ____ ____ (2 words).
|
sample mean
|
|
|
It is never correct to say that we _______ the null hypothesis.
|
accepted
|
|
|
Use the Table of Critical t values to answer this questions: If I select a significance level of alpha = .05, and use a two-tailed test and have a sample size of N = 12, what is the critical value of t?
|
2.201 because t=0-mu/square root of n
|
|
|
In any samping distribution of t, the mean value of t will be ____ .
|
0
|
|
|
How many degrees of freedom are there for the one-sample t-test? (formula)
|
n-1
|
|
|
Use the Table of Critical t values to answer this questions: If I select a significance level of alpha = .05, use a one-tailed (directional) test and have a sample size of N = 12, what is the critical value of t?
|
1.796
|
|
|
The one-sample t-test allows us to determine whether the the sample mean differs from the hypothesized population mean by more than expected by _____ _______ alone.
|
sampling error
|
|
|
The one-sample t-test is calculated when we do not know the ______ ______ ________ . (3 words)
|
population standard deviation
|
