Inferential statistics: Tests of difference

Question 1

What is level of significance?

2

Answer 1

• Lvl of probability where we reject the null hypothesis

Question 2

What is an alternate hypothesis?

1

Answer 2

• Exprmt hypothesis, non-experiment = alternate to null

Question 3

What is a critical value?

1

Answer 3

• Number (value) must be achieved for results to be sig

Question 4

What does p mean?

1

Answer 4

• Probability, likelihood event may occur

Question 5

What is meant by significance?

1

Answer 5

• Findings strong enough to reject null and accept alternate

Question 6

What info is needed before checking the critical values table?
4

Answer 6

• Nb of ppt in study (n), maybe degree of freedom (df)
• Direction of hypothesis
• Required lvl of significance
• If observed value has to be more/less than critical value for significance

Question 7

What is the rule of R?

1

Answer 7

• Test has an R in name = observed value must be greater than critical value for significance