Statistical Hypotheses

Question 1

95% CI for a mean difference between variables

Answer 1

if it includes 0 then there is no significant difference and Ho is not rejected

Question 2

95% for ODDS ratio or relative risk

Answer 2

IF it includes 1, Ho is not rejected

Question 3

if the CI between 2 groups overlap

Answer 3

usually NO significant difference exists

Question 4

if the CI between 2 groups do not overlap

Answer 4

significant difference exists

Question 5

statistical power (1-β)?

Answer 5

the probability of rejecting the null hypotephesis when it is false