Inferential Statistics

Question 1

Descriptive stats

Answer 1

Allows us to draw concs
Graphs/tables

Question 2

Inferential stats

Answer 2

Allows us to determine wheather difference is sig
Determining which hyp is true (direction/directional hyp)

Question 3

If test is significant

Answer 3

Reject null hypothesis
Accept alternative/exp hypothesis

Question 4

If not significant

Answer 4

Accept null hypothesis
Reject alternative/exp hypothesis

Question 5

P value

Answer 5

Sig level
Gives us idea of how likely our results happened by chance or not

Question 6

Stringent

Answer 6

Strict

Question 7

Is 0.01 strict or lenient

Answer 7

Strict

Question 8

Is 0.05 strict or lenient in comp to 0.01

Answer 8

Lenient

Question 9

More stringent level is used when?

Answer 9

Real life sit test such as drug test

Question 10

One tailed

Answer 10

Directional

Question 11

2 tailed

Answer 11

Non directional

Question 12

Type 1 error

Answer 12

Reject null + accept alt incorrectly
False postcode
Think you’ve found is but haven’t - optimistic
O for one

To check look at stricter value + check significance

Question 13

Type 2 error

Answer 13

Accept null + reject alt incorrectly
False negative
Pessimistic
likely when sig level is too stringent

To check - look at more lenient value + check sig (to see if u should still reject alt hyp)