### Understanding Type II Errors and Hypothesis Testing**Question 1: Understanding Type II Errors**A Type II error is committed if we make:- **A.** A correct decision when the null hypothesis is true- **B.** A correct decision when the null hypothesis is false- **C.** An incorrect decision when the null hypothesis is false- **D.** An incorrect decision when the null hypothesis is true*Correct Answer: [C] An incorrect decision when the null hypothesis is false* *A Type II error occurs when we fail to reject a false null hypothesis.*---**Question 2: Hypothesis Testing at Various Significance Levels**If a hypothesis is not rejected at the 0.10 level of significance, it:- **A.** Must be rejected at the 0.05 level- **B.** Must be rejected at the 0.025 level- **C.** Will not be rejected at the 0.05 level- **D.** Will not be rejected at the 0.20 level*Correct Answer: [C] Will not be rejected at the 0.05 level* *If a hypothesis is not rejected at a higher significance level (e.g., 0.10), it will also not be rejected at a lower (more stringent) level like 0.05.*

Type I error: The type I error if the null hypothesis is rejected when it is actually true. Type II…

Answered: A Type Il error is committed if we make…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Which of the following risks a Type II error? A.Rejecting a null hypothesis that is true B.Not rejecting a null hypothesis that is false C.Not rejecting a null hypothesis that is true D.All of the above E.Rejecting a null hypothesis that is false
7. When designing an hypothesis test, one of the first decisions that needs to be made is which hypothesis to assign to Ho and which hypothesis to assign to HA. One criterion that we discussed in Stat 252 this semester was to assign the hypothesis to Ho for which the consequences of a type I error are worse than the consequences of a type II error. Consider the following hypothetical scenario. Suppose that Michael is arrested for a crime. If the judge determines that Michael is guilty of the crime, then Michael will be sent to prison. In this scenario, there are two possible hypothesis tests that can be considered. • Hypothesis Test A: Ho: Michael is not guilty vs. HA: Michael is guilty. • Hypothesis Test B: Ho: Michael is guilty vs. HA: Michael is not guilty. In your opinion, for which of these two hypothesis tests (Test A or Test B) are the consequences of a type I error worse than the consequences of a type II error? Be sure to justify your decision, and to explain the practical…
Which of the following statements represents a null hypothesis? Strawberries are more nutritious than raspberries. More people prefer Burger King over McDonald's cheeseburgers. COVID is not more dangerous than influenza virus. Smoking cigars has a lower risk of cancer compared to smoking cigarettes.
In a two- tailed hypothesis test the test statistic is determined to be Z = - 2.4 . The p- value for this test is A. 0.0164 B. -1.250 C. 0.0062 D. 0.0124
B. The test statistic is z=___. C. The P-value is___ D. Identify the conclusion about the null hypothesis and the final conclusion that addresses the original claim. (Reject/fail to reject) H0. There (is/is not) sufficient evidence to support the claim that the polygraph results are correct less than 80% of the time.
Determine the Type l error if the null hypothesis, Ho, is: an electrician claims that no more than 10% of homes in the city are not up to the current electric codes. Select the correct answer below: 0 The electrician thinks that no more than 10% of homes in the city are not up to the current electrical codes when, in fact, there really are no more than 10% that are not up to the current electric codes. O The electrician thinks that more than 10% of the homes in the city are not up to the current electrical codes when, in fact, there really are more than 10% of the homes that do not meet the current electric codes. O The electrician thinks that more than 10% of the homes in the city are not up to the current electrical codes when, in fact, at most 10% of the homes in the city are not up to the current electric codes. 0 The electrician thinks that no more than 10% of homes in the city are not up to the current electrical codes when, in fact, more than 10% of the homes are not up to the…
A Type I error is defined as a. rejecting a null hypothesis when it is in fact true b. rejecting a false null hypothesis c. failing to reject a true null hypothesis d. failing to reject a false null hypothesis
A study done on a marriage counseling course showed that the proportion of couples for which the communication program can prevent divorce is 79%. Suppose we have strong reason to believe the proportion is less than 79%, and we carry out a hypothesis test. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. 1. Ho: 2. H1:
When is there a risk of a Type I error? Question 8 options: Whenever H, is rejected Whenever H, is rejected Whenever the decision is "fail to reject H," The risk of a Type I error is independent of the decision from a hypothesis test.
A type Il error A. is the rejection of a true null hypothesis. OB. arises when the false null hypothesis is not rejected. OC. arises when the true null hypothesis is not rejected. OD. is the rejection of a false null hypothesis.
12
A researcher wants to know if there is a relationship between gender and the likelihood of being a psychology major. A sample of n=200 participants is surveyed and the observed results are presented in the table below. Male Female Yes 20 70 No 80 30 Which of the following lists the appropriate hypotheses for this question and data? a. Ho (null): the variables are independent; H1 (alternative): the variables are not independent b. Ho (null): the variables are not independent; H1 (alternative): the variables are independent A researcher wants to know if there is a relationship between gender and the likelihood of being a psychology major. A sample of n=200 participants is surveyed and the observed results are presented in the table below. Male Female Yes 20 70 No 80 30 Which of the following lists the correct value of the test statistic and critical value? a. 7.98 (test statistic); 1.34 (critical value) b.…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS