STATS 3

Question 1

we cqalculate probabilities of a population to make predictions and decisions

Answer 1

STATISTICS

Question 2

a probabilty distribution of continuos random variables

Answer 2

NORMAL PROBABILTY THEOREM

Question 3

statictical conept that the sample mean distribution of a random varibale will assume a near normal or normal

Answer 3

CENTRAL LIMIT THEOREM

Question 4

mean is equal to what?

Answer 4

POPULATION MEAN

Question 5

what is the shape of normal curve

Answer 5

BELL SHAPE

Question 6

another name for t distribution

Answer 6

STUDENTS DISTRIBUTION

Question 7

used to estimate population parameters when the sample size is small and/or when the population variance is unknwn

Answer 7

T DISTRIBUTION

Question 8

t distribution has what greater value than 1

Answer 8

VARIANCE AND STANDARD DEVIATION

Question 9

t distbution has more area where?

Answer 9

TAILS

Question 10

formula for t distribtion

Answer 10

X BAR MINUS M OVER S OVER SQUARE ROOT OF N

Question 11

formula for mean

Answer 11

JUST COPY MEAN

Question 12

formula for standard deviation

Answer 12

STANDARD DEVIATION OVER SQUARE ROOT OF N

Question 13

ormula for variance

Answer 13

VARIANCE OVER N

Question 14

when degree of freedom is given

Answer 14

DO NOTHING

Question 15

when n is given

Answer 15

MINUS ONE

Question 16

refers to the probability that the confidence interval contains the true population parameter

Answer 16

CONFIDENCE LEVEL

Question 17

formula for confidence level

Answer 17

(1-A) 100%

Question 18

assumption or idea that is proposed to the sake of an argument so that it can be tested

Answer 18

HYPOTHESIS

Question 19

constructed before research apart from background review

Answer 19

SCIENTIFIC METHOD

Question 20

making generalization about the population using a sample

Answer 20

HYPOTHESIS TESTING

Question 21

statement about the numerical value of a population parameter

Answer 21

STATISTICAL HYPOTHESIS

Question 22

if found to be true

Answer 22

ACCEPTED

Question 23

if found to be false

Answer 23

REJECTED

Question 24

denoted by Ho, a tatement that there is n difference between a parameter and specific value

Answer 24

NULL HYPOTHESIS

Question 25

denoted by Ha , the opposite or negation of the null hypothesis

Answer 25

ALTERNATIVE HYPOTHESIS

Question 26

always expressed with equal sign

Answer 26

NULL

Question 27

expressed with inequality signs

Answer 27

ALTERNATIVE

Question 28

words that refer to null

Answer 28

IS EQUAL TO
THE SAME AS
NOT CHANGED FROM

Question 29

words that refer to unequal sign

Answer 29

NOT EQUAL
DIFFERENT FROM
CHANGED FROM
NOT THE SAME AS

Question 30

words that refer to >

Answer 30

GREATER THAN
ABOVE
HIGHER THAN
LOWER THAN
BIGGER THAN
INCREASED
ATLEAST

Question 31

words that refer to <

Answer 31

LESS THAN
BELOW
LOWER THAN
SHORTER THAN
SMALLER THAN
DECREEASED
AT MOST

Question 32

test of any statistical hypothesis where the alternative hypothesis is expressed since the critical value or rejection region lies entirely in one tail of the sampling distribition

Answer 32

DIRECTIONAL TEST

Question 33

where the alternative hypothesis is written with a not equal sign

Answer 33

NON DIRECTIONAL TEST

Question 34

occurs when we reject the null hypothesis when it is true

Answer 34

TYPE 1 ERROR

Question 35

another name for type 1 error

Answer 35

ALPHA ERROR

Question 36

occured when we accept the null hypothesis when it is false

Answer 36

TYPE 2 ERROR

Question 37

another name for type 2 error

Answer 37

BETA ERROR

Question 38

value of a tells us the probability of making an error in rejecting the null hypothesis when its actually true

Answer 38

LEVELS OF SIGNIFICANCE

Question 39

pag tama naman pero nireject

Answer 39

TYPE 1 ERROR

Question 40

pag mali pero pinipilit i accept

Answer 40

TYPE 2 ERROR