G11 Hypothesis Testing Review

G11 Hypothesis Testing Review

Statistics and Probability

Poll

What is "a decision-making process for evaluating claims about a population"?

• Population Testing

• Hypothesis Testing

• Sample Testing

Multiple Choice

State the null and alternative hypotheses:

The average weight of dogs is 15.6 pounds.

• Ho: μ = 15.6 and H1: μ ≠ 15.6

• Ho: μ = 15.6 and H1: μ > 15.6

• Ho: μ = 15.6 and H1: μ < 15.6

Multiple Choice

State the null and alternative hypotheses:

The average farm size in 1970 was less than 390 acres.

• Ho: μ = 390 and H1: μ < 390

• Ho: μ = 390 and H1: μ > 390

• Ho: μ = 390 and H1: μ ≠ 390

Multiple Choice

State the null and alternative hypotheses:

The average distance a person lives away from a toxic waste site is greater than 10.8 miles.

• Ho: μ = 10.8 and H1: μ ≠ 10.8

• Ho: μ = 10.8 and H1: μ < 10.8

• Ho: μ = 10.8 and H1: μ > 10.8

Open Ended

What is a statistical test?

Fill in the Blank

A type I error occurs if you reject the null hypothesis when it is ____.

Fill in the Blank

A type II error occurs if you do not ______ the null hypothesis when it is false.

Multiple Choice

What symbols are used to represent the probabilities of type I and type II errors?

• 1, 2

• A, B

• 𝛼, 𝛽

Multiple Choice

What are the three significance levels?

• 0.5, 0.10, 0.05

• 0.10, 0.05, 0.01

• 0.5, 0.05, 0.01