Data recording, analysis and presentation (inferential statistics)

Question 1

Three. Different curve.

Answer 1

Normal distribution
Negatively skewed distribution
Positively skewed distribution

Question 2

Where are mode median and mean on distribution curve?

Answer 2

Mode median mean :
top of normal distribution curve
From right to left of negatively skewed distribution
From left to right of positively, skewed distribution

Question 3

Rules of standard level of significant

Answer 3

The standard is not reached, p>0.05 , null hypothesis has been supported
The standard is reached, p<=0.05 , null hypothesis has not been supported, alternative hypothesis has been supported
Standard has been exceeded, highest level of significant (p<= 0.01), alternative hypothesis has been strongly supported

Question 4

P meaning

Answer 4

Probability, due to chance

Question 5

Criteria for using a parametric test

Answer 5

Internal/ratio data
A curve of normal distribution data
Similar variance

Question 6

Criteria for using a specific non-parametric inferential test

Answer 6

N o ir
C m t (unrelated) - independent
B w r (related) - repeated/ matched
Sr p (correlation)

Question 7

Definition of type one error

Answer 7

Alternative hypothesis is accepted wrongly the subject. and the null hypothesis is rejected (behaviour, show is really due to chance)

Question 8

Definition of type 2 error

Answer 8

Rejected the alternative hypothesis, accepted the null hypothesis when the independent variable is really having a significant impact on dependent variable

Question 9

Which type of to arise the researcher is more likely to make and why

Answer 9

Type 1
Keen to get the work publish to make their name , more likely to get employed by uni

Question 10

Special symbol «,&raquo_space; , ~, alpha

Answer 10

Much less than
Much greater than
Proportionality (correlation has a linear property)
Approximately