MIXED NOTATION FOR WINTER Flashcards

1
Q

Ho

A

Null Hypothesis

2
Q

n

A

sample size

3
Q

x-bar

A

sample mean

4
Q

s^2

A

sample variance

5
Q

54321

A

5! Meaning

6
Q

Outlier fences

A

Q1- 1.5IQR and Q3+1.5IQR

7
Q

y-hat

A

predicted y

8
Q

IQR

A

Q3-Q1

9
Q

sigma^2

A

population variance

10
Q

predicted y

A

y-hat

11
Q

1/p

A

Expected first success?

12
Q

p

A

pop proportion

13
Q

sigma

A

population st. dev

14
Q

Null Hypothesis

A

Ho

15
Q

population st. dev

A

sigma

16
Q

Expected number of successes?

A

np

17
Q

population mean

A

mu

18
Q

P(A) = P (A|B) and P(A)*P(B)=P(A and B)

A

two independence formulas

19
Q

n! / r! n-r!

A

nCr formula

20
Q

sample proportion

A

p-hat

21
Q

y - yhat

A

Residual

22
Q

2* root (pq/n)

A

ME for 1 prop (95% interval)

23
Q

sample size

A

n

24
Q

population variance

A

sigma^2

25
Q

5! Meaning

A

54321

26
Q

Alternative Hypothesis

A

Ha

27
Q

difference of sample proportions

A

phat 1 - phat 2

28
Q

SE for 1-mean inference

A

sigma/root n

29
Q

p 1 - p 2

A

difference of population proportions (%)

30
Q

sigma/root n

A

SE for 1-mean inference

31
Q

np

A

Expected number of successes?

32
Q

p-hat

A

sample proportion

33
Q

sample mean

A

x-bar

34
Q

Expected first success?

A

1/p

35
Q

xbar 1 - xbar 2

A

difference of sample means

36
Q

nCr formula

A

n! / r! n-r!

37
Q

population size

A

N

38
Q

sample variance

A

s^2

39
Q

s

A

sample st. dev

40
Q

phat 1 - phat 2

A

difference of sample proportions

41
Q

ME for 1 mean (95% interval)

A

2* s/root n

42
Q

root (pq/n)

A

SE for 1-proportion inference

43
Q

Q3-Q1

A

IQR

44
Q

mu 1 - mu 2

A

difference of population means

45
Q

Ha

A

Alternative Hypothesis

46
Q

2* s/root n

A

ME for 1 mean (95% interval)

47
Q

Residual

A

y - yhat

48
Q

SE for 1-proportion inference

A

root (pq/n)

49
Q

two independence formulas

A

P(A) = P (A|B) and P(A)*P(B)=P(A and B)

50
Q

ME for 1 prop (95% interval)

A

2* root (pq/n)

51
Q

sample st. dev

A

s

52
Q

Q1- 1.5IQR and Q3+1.5IQR

A

Outlier fences

53
Q

difference of sample means

A

xbar 1 - xbar 2

54
Q

difference of population means

A

mu 1 - mu 2

55
Q

pop proportion

A

p

56
Q

difference of population proportions (%)

A

p 1 - p 2

57
Q

N

A

population size

58
Q

mu

A

population mean