1) An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 21,387 responses, 65% were​ "yes." Use a 0.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to​ respond?   2) Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is ​(Round to two decimal places as​ needed.)   Identify the​ P-value for this hypothesis test. The​ P-value for this hypothesis test is ​(Round to three decimal places as​ needed.)   3) Identify the conclusion for this hypothesis test. Reject H0. There is sufficient evidence to support the claim that most people believe that the Loch Ness monster exists. Reject H0. There is not sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists. Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists. Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists.   4) How is the conclusion affected by the fact that Internet users who saw the question could decide whether to​ respond? Since any of the​ site's users are allowed to​ respond, the conclusion is valid. Since the sample size is sufficiently​ large, the conclusion is valid. Since only certain users are being allowed to​ respond, the conclusion is not valid. Since the sample is a​ voluntary-response sample, the conclusion might not be valid.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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PLEASE ONLY SELECT THE ANSWERS AS SHOWN FOR THE MULTIPLE CHOICE, SUCH AS OPTION 1, 2, ETC.

1)

An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 21,387 responses, 65% were​ "yes." Use a 0.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to​ respond?

 

2)

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

​(Round to two decimal places as​ needed.)

 

Identify the​ P-value for this hypothesis test.

The​ P-value for this hypothesis test is

​(Round to three decimal places as​ needed.)

 

3)

Identify the conclusion for this hypothesis test.

  1. Reject H0. There is sufficient evidence to support the claim that most people believe that the Loch Ness monster exists.
  2. Reject H0. There is not sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists.
  3. Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists.
  4. Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that most people believe that the Loch Ness monster exists.

 

4)

How is the conclusion affected by the fact that Internet users who saw the question could decide whether to​ respond?

  1. Since any of the​ site's users are allowed to​ respond, the conclusion is valid.
  2. Since the sample size is sufficiently​ large, the conclusion is valid.
  3. Since only certain users are being allowed to​ respond, the conclusion is not valid.
  4. Since the sample is a​ voluntary-response sample, the conclusion might not be valid.
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