Hypothesis Testing

Question 1

Type I Error

Answer 1

False Positive; Rejecting the null when the null needed to be accepted (true null)

Question 2

Type II Error

Answer 2

False Negative; Accepting the null when the null needed to be rejected (false null)

Question 3

Define Statistical Power

Answer 3

(1-B), the certainty that when you found something it is significant

Question 4

R^2; Regression formula

Answer 4

1- SSreg/SStotal

Closer to 1 means it’s good

Question 5

Sum of Squares formula

Answer 5

Sum(x-Mean)^2

“difference from mean”