Hypothesis Testing Flashcards
1
Q
Formula to check if a probability distribution is normal
A
Np>15
N(1-p)>15
2
Q
Formula to find SD for probability
A
Sd= p(1-p)/ n [all of that is squared]
3
Q
Z score for probabilty (z score is what you put inside of parentheses)
A
Z = p(hat) -p/ (square root of) p(1-p)/n
4
Q
What does p hat equal?
A
Smaller sample out of the sample
Ie: 4/300
5
Q
Test statistic formula
A
T= x bar- Mo/ sd/square root of n aka SE
6
Q
Mo?
A
Hypothesized value
7
Q
DF
A
N-1
8
Q
Rejecting a a true Ho and supporting a false Ha
A
Type 1
9
Q
Not rejecting a false Ho and not supporting a true Ha
A
Type 2
10
Q
When you choose a smaller alpha you see more likely to avoid ?
A
Type 1
11
Q
When you choose a larger alpha, reduces the chance of a ?
A
Type 2 erroe
