population of a discernible size e.g. pupils at a school

2 of 17

infinite population

population of infinite/indiscernible size e.g. grains of sand on a beach

3 of 17

countably infinite population

population with a countable number of elements but counting up to reach one such element could take forever e.g. no of throws of a dice before a 6 is obtained

4 of 17

Census

an investigation which obtains information from all members of the population

5 of 17

sample

a group of individuals which form a subset of the population

6 of 17

sample survey

an investigation using a sample

7 of 17

sampling units

the individual units of a population (i.e. each child in a class would be a sampling unit)

8 of 17

sampling frame

a list/index of all sampling units

9 of 17

population parameter

any measurable characteristic of a population

10 of 17

statistic

a quantity which is a function of a set of observations which does not involve any unknown parameters

11 of 17

sampling distribution

the probability distribution of a statistic which gives all its possible values and the probability of each occurring

12 of 17

test statistic

summary of the evidence from a sample

13 of 17

null hypothesis

the hypothesis we assume to be correct unless there is evidence otherwise, H0

14 of 17

alternative hypothesis

hypothesis which tells us about the value of a population parameter should we reject H0

15 of 17

critical region

the set of values of the test statistic for which H0 is rejected in a hypothesis test

16 of 17

significance level

the probability of rejecting H0

17 of 17

Other cards in this set

Card 2

Front

population of a discernible size e.g. pupils at a school

Back

finite population

Card 3

Front

population of infinite/indiscernible size e.g. grains of sand on a beach

Back

Card 4

Front

population with a countable number of elements but counting up to reach one such element could take forever e.g. no of throws of a dice before a 6 is obtained

Back

Card 5

Front

an investigation which obtains information from all members of the population

## Comments

No comments have yet been made