Question 1

In testing for differences between the means of two independent populations,the null hypothesis is:

Accepted Answer

A) H0 : μ1 - μ2 ≠ 1. B) H0 : μ1 - μ2 = 0. C) H0 : μ1 - μ2 > 0. D) H0 : μ1 - μ2 < 1. A) H0 : μ1 - μ2 ≠ 1. B) H0 : μ1 - μ2 = 0. C) H0 : μ1 - μ2 > 0. D) H0 : μ1 - μ2 < 1.

Question 2

In testing H0 : Px - Py = 0,the p-value equals the probability,1 - β,of avoiding the Type II error of erroneously failing to reject a null hypothesis that is in fact false.

Accepted Answer

A) True 
 B)False

Question 3

In hypothesis testing,such as testing the difference between two population proportions,which of the following statements is correct when the significance level is 0.05?

Accepted Answer

A) only statistics that occur with a probability of less than .95 when H0 is true are sufficient evidence to reject H0. 
B) only statistics that occur with a probability of less than .05 when H0 is true are sufficient evidence to reject H0. 
C) only statistics that occur with a probability of .95 or more when H0 is true are sufficient evidence to reject H0. 
D) only statistics that occur with a probability of .05 or more when H0 is true are sufficient evidence to reject H0. 
A) only statistics that occur with a probability of less than .95 when H0 is true are sufficient evidence to reject H0. 
B) only statistics that occur with a probability of less than .05 when H0 is true are sufficient evidence to reject H0. 
C) only statistics that occur with a probability of .95 or more when H0 is true are sufficient evidence to reject H0. 
D) only statistics that occur with a probability of .05 or more when H0 is true are sufficient evidence to reject H0.

In testing for differences between the means of two independent populations,the null hypothesis is:

In testing H₀ : P_x - P_y = 0,the p-value equals the probability,1 - β,of avoiding the Type II error of erroneously failing to reject a null hypothesis that is in fact false.

In hypothesis testing,such as testing the difference between two population proportions,which of the following statements is correct when the significance level is 0.05?

Describing Data: Graphical

Describing Data: Numerical

Probability

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

Exam 10: Hypothesis Testing: Additional Topics

In testing for differences between the means of two independent populations,the null hypothesis is:

In testing H0 : Px - Py = 0,the p-value equals the probability,1 - β,of avoiding the Type II error of erroneously failing to reject a null hypothesis that is in fact false.

In hypothesis testing,such as testing the difference between two population proportions,which of the following statements is correct when the significance level is 0.05?

Describing Data: Graphical

Describing Data: Numerical

Probability

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

In testing H₀ : P_x - P_y = 0,the p-value equals the probability,1 - β,of avoiding the Type II error of erroneously failing to reject a null hypothesis that is in fact false.