MIXED NOTATION FOR MIDTERM Flashcards
(58 cards)
1
Q
IQR
A
Q3-Q1
2
Q
s^2
A
sample variance
3
Q
difference of population means
A
mu 1 - mu 2
4
Q
ME for 1 mean (95% interval)
A
2* s/root n
5
Q
ME for 1 prop (95% interval)
A
2* root (pq/n)
6
Q
sample size
A
n
7
Q
sample mean
A
x-bar
8
Q
sample variance
A
s^2
9
Q
SE for 1-proportion inference
A
root (pq/n)
10
Q
Q3-Q1
A
IQR
11
Q
mu 1 - mu 2
A
difference of population means
12
Q
nCr formula
A
n! / r! n-r!
13
Q
pop proportion
A
p
14
Q
2* s/root n
A
ME for 1 mean (95% interval)
15
Q
s
A
sample st. dev
16
Q
x-bar
A
sample mean
17
Q
SE for 1-mean inference
A
sigma/root n
18
Q
Ho
A
Null Hypothesis
19
Q
Outlier fences
A
Q1- 1.5IQR and Q3+1.5IQR
20
Q
difference of sample means
A
xbar 1 - xbar 2
21
Q
p
A
pop proportion
22
Q
predicted y
A
y-hat
23
Q
2* root (pq/n)
A
ME for 1 prop (95% interval)
24
Q
two independence formulas
A
P(A) = P (A|B) and P(A)*P(B)=P(A and B)
25
population mean
mu
26
y-hat
predicted y
27
5*4*3*2*1
5! Meaning
28
sigma^2
population variance
29
population st. dev
sigma
30
N
population size
31
root (pq/n)
SE for 1-proportion inference
32
Expected first success?
1/p
33
sigma
population st. dev
34
5! Meaning
5*4*3*2*1
35
P(A) = P (A|B) and P(A)*P(B)=P(A and B)
two independence formulas
36
sample proportion
p-hat
37
Residual
y - yhat
38
difference of population proportions (%)
p 1 - p 2
39
y - yhat
Residual
40
Expected number of successes?
np
41
mu
population mean
42
Q1- 1.5IQR and Q3+1.5IQR
Outlier fences
43
population variance
sigma^2
44
Ha
Alternative Hypothesis
45
n
sample size
46
xbar 1 - xbar 2
difference of sample means
47
p-hat
sample proportion
48
phat 1 - phat 2
difference of sample proportions
49
Alternative Hypothesis
Ha
50
np
Expected number of successes?
51
sigma/root n
SE for 1-mean inference
52
p 1 - p 2
difference of population proportions (%)
53
n! / r! n-r!
nCr formula
54
difference of sample proportions
phat 1 - phat 2
55
sample st. dev
s
56
population size
N
57
Null Hypothesis
Ho
58
1/p
Expected first success?
