Lecture 1

Question 1

What are descriptive statistics?

Answer 1

They just describe the data:
Measures of central tendency (Mid-range, mode, median and mean)
Measures of variability (Range, variation ratio, standard deviation and interquartile range)

Question 2

What are inferential statistics?

Answer 2

The describing of relationships in data or differences between groups

Question 3

What are the six steps to hypothesis testing?

Answer 3

1. State the null hypothesis
2. State the alternate hypothesis
3. Decide on a rejection level
4. Conduct a statistical test
5. Decide whether to accept/reject null hypothesis
6. Draw up conclusions

Question 4

What are the P-values of a significant test outcome?

Answer 4

P < 0.05