hypothesis testing Flashcards
1
Q
comparing two means of independent or urelated grps to determine if there is a significant difference b/w them
A
unpaired t test
2
Q
if p value is <5 percent or <0.05
A
significant, reject null hypothesis
3
Q
if p value is > 0.05 or 5 percent
A
retain null hypothesis
4
Q
what are the three assumptions for unpaired t test
A
- samples are independent to each other
- samples follow normal distribution
- SD of the samples are equal
5
Q
assumes that there is ND within the pairs of samples
A
paired t test
6
Q
unpaired t tests in two sample test, assesses the difference in sample means from unrelated samples
A
true
7
Q
one sample unpaired t test assesses that mean is fixed, often 0
A
true
