Hypothesis Testing

Question 1

What is a p-value?

Accepted Answer

percentage of the distribution that is more extreme than the test statistic

Question 2

With alpha=0.05, your C.I. is 3.45 ≤ µ ≤ 6.12. For which sample means will you reject the null hypothesis (two tailed)?

Accepted Answer

µ = -3.4, µ = 17

Question 3

What parameters are used to look up the Chi-Squared critical values in the distribution chart?

Accepted Answer

degrees of freedom, alpha

Question 4

Hypothesis testing is a form of...

Accepted Answer

Population Statistics

Question 5

What type of test is depicted below? Select ALL that apply.

Accepted Answer

left-tailed, one-tailed, lower-bound

Question 6

Which of the following is the most appropriate alternate hypothesis for the null hypothesis µ ≥ 6

Accepted Answer

µ < 6

Question 7

Which of the following are VALID null hypothesies? Select all that apply

Accepted Answer

µ ≥ 6, µ = 6

Question 8

What does the symbol Ω represent in hypothesis tests?

Accepted Answer

population standard deviation

Question 9

Inferential Statistics is..

Accepted Answer

using a sample to draw conclusions about a population

Question 10

Critical values for my two tailed HT are -1.96 and 1.96. Which test statistics would lead me to FAIL TO REJECT my null?

Accepted Answer

1, -1

Question 11

When would you use a t-distribution to approximate your values in your hypothesis test? Assume a large sample size.

Accepted Answer

population variance is unknown

Question 12

Which an alpha value of 0.05, which of the following p-values would cause you to REJECT null hypothesis?

Accepted Answer

0.02, 0.00001

Questions 12