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Flashcards in Test 3 Deck (15):
1

For the normal distribution there is___mode and the median and mean___

one
are equal

2

The standard normal distribution assumes U=__and o=___

0
1

3

The T distribution is identical to the normal distribution except it does not assume o=___

1

4

For a continuous probability distribution such as the normal distribution, given some number, A, the probabilities P(X

Equal

5

The X2 distribution is used to approximate the populations___,___

Varience
Standard Deviation

6

When the population standard deviation is known, for a confidence interval we use?

Z Table

7

When the population standard deviation is unknown for a confidence interval we use?

T Table

8

Any confidence interval u assumes the population is normally distributed or

N>30
-

9

Any confidence interval u assumes the population is normally distributed or (If N>30 is not present)

None of the above

10

The expression

margin of error

11

In general for a confidence interval as the level of confidence decreases?

the width interval decreases

12

In general for a confidence interval as the level of confidence increases?

The width interval increases

13

Amoung other limits the central limit theorem tells us

sample size increase sample approaches normal

14

For any event X, ___

0

15

A binomial distribution____ be used for experiments with more than_such as multiple choice

Can
1