Final Exam Slides Flashcards

1
Q

The t-test is a test about

A

means

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2
Q

what is the question t-tests are answering

A

are two means different from one another

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3
Q

the t-test is a derivative of what

A

z-test

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4
Q

the t-test uses the estimate of what instead of the true standard error

A

standard error of the mean

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5
Q

t-test are what?

A

parametric

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6
Q

what does parametric mean?

A

they carry an assumption of normality in their dataset

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7
Q

when you want to compare a sample mean to some known or hypothesized value

A

one-sample test

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8
Q

the question are lilies in your garden larger on average than the horticultural standard is what one kind of t-test

A

one-sample test

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9
Q

if you want to compare two groups to one another

A

independent samples t-test

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10
Q

if you want to see how a group changes over time you use a

A

repeated measures t-test

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11
Q

the question , is there a difference between male and female scores on a dexterity test, uses what test

A

independent samples t-test

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12
Q

pre post test is what

A

repeated measures t-test

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13
Q

do freshman biology student grades increase after tutoring uses what test

A

repeated measures t-test

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14
Q

in one sample t-test the samples must be what kind of data

A

interval or ratio (quantitative/ scalar)

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15
Q

the samples in a one sample t-test must approximate a

A

normal curve

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16
Q

do you know the true standard error of the mean in a one sample t-test

A

no

17
Q

what can you estimate one sample t-test with the

A

sample standard deviation

18
Q

what are the degrees of freedom in a one-sample t-test

A

n-1

19
Q

in independent samples t-test must be what kind of data

A

interval and ratio

20
Q

the samples in an independent samples t-test approximate a

A

normal curve

21
Q

is the independent samples t-test robust to violations and if so when

A

when each group has n that is larger than 10

22
Q

degrees of freedom for independent samples t-test is

A

n-2

23
Q

the vairance of the samples in independent samples t-test is

A

similar