Chapter 21 & 22.1

Question 1

The probability that you would obtain the effect observed in your sample, or larger, if the null hypothesis is true for the populations.

Answer 1

p-value.

Question 2

Designated as α, it defines unlikely values of sample statistic if null hypothesis is true.

Answer 2

Significance level.

Question 3

Rejection of a true null hypothesis. Probability of this is α, called level of significance.

Answer 3

Type 1 Error.

Question 4

Failure to reject a false null hypothesis. Probability of this is ß.

Answer 4

Type 2 Error.

Question 5

Interpret your interval for p_m - p_f .

Answer 5

I am 95% confident that the population proportion for “m” who “subject” is between %₁ and %₂ less than/greater than “f” who “subject”.

less than if (-#, -#)

greater than if (#, #)