Question

Multiple Choice. Circle the best answer. Make sure your answer is clearly marked. Ambiguous responses will be marked wrong.

1. In a hypothesis test for H₀: m₁ = m₂ vs H_a: m₁ > m₂,we have a sample with x1=26, x2=23. The randomization distribution will be centered around 3.

(a) True           (b) False

2. A statistical test is used to determine whether results from a population are convincing enough to allow us to conclude something about the sample.

(a) True           (b) False

3. Which of the following P-values provides the strongest evidence in favor of H0?

(a) p-value=0.002    (b) p-value=0.09     (c) p-value=0.5

(d) p-value=0.12

4. In this exercise, we are conducting many hypothesis tests to test a claim. Assume that the null hypothesis is true. If 220 tests are conducted using a significance level of 5%, approximately how many of the tests will incorrectly find significance?

(a) 11    (b) 12      (c)   15         (d) 13

5. If we increase the chances of a Type I error occurring, then the chances of a Type II error occurring will increase.

(a) True           (b) False

Answer 1

any query please comment below.