MIXED NOTATION FOR MIDTERM Flashcards

1
Q

IQR

A

Q3-Q1

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2
Q

s^2

A

sample variance

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3
Q

difference of population means

A

mu 1 - mu 2

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4
Q

ME for 1 mean (95% interval)

A

2* s/root n

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5
Q

ME for 1 prop (95% interval)

A

2* root (pq/n)

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6
Q

sample size

A

n

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7
Q

sample mean

A

x-bar

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8
Q

sample variance

A

s^2

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9
Q

SE for 1-proportion inference

A

root (pq/n)

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10
Q

Q3-Q1

A

IQR

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11
Q

mu 1 - mu 2

A

difference of population means

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12
Q

nCr formula

A

n! / r! n-r!

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13
Q

pop proportion

A

p

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14
Q

2* s/root n

A

ME for 1 mean (95% interval)

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15
Q

s

A

sample st. dev

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16
Q

x-bar

A

sample mean

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17
Q

SE for 1-mean inference

A

sigma/root n

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18
Q

Ho

A

Null Hypothesis

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19
Q

Outlier fences

A

Q1- 1.5IQR and Q3+1.5IQR

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20
Q

difference of sample means

A

xbar 1 - xbar 2

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21
Q

p

A

pop proportion

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22
Q

predicted y

A

y-hat

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23
Q

2* root (pq/n)

A

ME for 1 prop (95% interval)

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24
Q

two independence formulas

A

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

25
Q

population mean

A

mu

26
Q

y-hat

A

predicted y

27
Q

54321

A

5! Meaning

28
Q

sigma^2

A

population variance

29
Q

population st. dev

A

sigma

30
Q

N

A

population size

31
Q

root (pq/n)

A

SE for 1-proportion inference

32
Q

Expected first success?

A

1/p

33
Q

sigma

A

population st. dev

34
Q

5! Meaning

A

54321

35
Q

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

A

two independence formulas

36
Q

sample proportion

A

p-hat

37
Q

Residual

A

y - yhat

38
Q

difference of population proportions (%)

A

p 1 - p 2

39
Q

y - yhat

A

Residual

40
Q

Expected number of successes?

A

np

41
Q

mu

A

population mean

42
Q

Q1- 1.5IQR and Q3+1.5IQR

A

Outlier fences

43
Q

population variance

A

sigma^2

44
Q

Ha

A

Alternative Hypothesis

45
Q

n

A

sample size

46
Q

xbar 1 - xbar 2

A

difference of sample means

47
Q

p-hat

A

sample proportion

48
Q

phat 1 - phat 2

A

difference of sample proportions

49
Q

Alternative Hypothesis

A

Ha

50
Q

np

A

Expected number of successes?

51
Q

sigma/root n

A

SE for 1-mean inference

52
Q

p 1 - p 2

A

difference of population proportions (%)

53
Q

n! / r! n-r!

A

nCr formula

54
Q

difference of sample proportions

A

phat 1 - phat 2

55
Q

sample st. dev

A

s

56
Q

population size

A

N

57
Q

Null Hypothesis

A

Ho

58
Q

1/p

A

Expected first success?