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1. The researcher can claim both the null hypothesis and the alternative hypothesis at the same time in the traditional method of hypothesis testing. 2. If the confidence level is 96% then a/2 is 0.02 3. A confidence interval is a specific number used to estimate the population parameter.

1. The researcher can claim both the null hypothesis and the alternative hypothesis at the same time in the traditional method of hypothesis testing. 2. If the confidence level is 96% then a/2 is 0.02 3. A confidence interval is a specific number used to estimate the population parameter.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Identify if the statement is TRUE or FALSE = + 1. The researcher can claim both the null hypothesis and the alternative hypothesis at the same time in the traditional method of hypothesis testing. 2. If the confidence level is 96% then a/2 is 0.02 3. A confidence interval is a specific number used to estimate the population parameter. 4. If a test value is in the critical region with a = 0.01, it would still be in the critical region even if the alpha was changed to α = 0.05. 5. If a researcher obtains a test score of z = 1.7 for a hypothesis test using a = 0.05, then the researcher should reject the null hypothesis for a right-tailed test. In addition, the researcher should also reject the null hypothesis for a two-tailed test. 6. The z test formula uses the sample standard deviation while the t test formula uses the population standard deviation. 7. The critical t value(s) depends on the degrees of freedom associated with the t test value. 8. A type I error occurs when a researcher unknowingly obtains an extreme non-representative example. 9. The null hypothesis should be rejected if the test value is - 2.8, α = 0.01, and the test is left-tailed. 10. The variance of the standard normal distribution and the t-distribution is 1.
Transcribed Image Text:Identify if the statement is TRUE or FALSE = + 1. The researcher can claim both the null hypothesis and the alternative hypothesis at the same time in the traditional method of hypothesis testing. 2. If the confidence level is 96% then a/2 is 0.02 3. A confidence interval is a specific number used to estimate the population parameter. 4. If a test value is in the critical region with a = 0.01, it would still be in the critical region even if the alpha was changed to α = 0.05. 5. If a researcher obtains a test score of z = 1.7 for a hypothesis test using a = 0.05, then the researcher should reject the null hypothesis for a right-tailed test. In addition, the researcher should also reject the null hypothesis for a two-tailed test. 6. The z test formula uses the sample standard deviation while the t test formula uses the population standard deviation. 7. The critical t value(s) depends on the degrees of freedom associated with the t test value. 8. A type I error occurs when a researcher unknowingly obtains an extreme non-representative example. 9. The null hypothesis should be rejected if the test value is - 2.8, α = 0.01, and the test is left-tailed. 10. The variance of the standard normal distribution and the t-distribution is 1.
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TRUE OR FALSE

  1. If a test value is in the critical region with  a=0.01, it would still be in the critical region even if the alpha was changed to =0.05.

 

  1. If a researcher obtains a test score of z=1.7 for a hypothesis test using =0.05, then the researcher should reject the null hypothesis for a right-tailed test. In addition, the researcher should also reject the null hypothesis for a two-tailed test.

 

  1. The z test formula uses the sample standard deviation while the t test formula uses the population standard deviation.

 

  1. The critical t value(s) depends on the degrees of freedom associated with the t test value.

 

  1. A type I error occurs when a researcher unknowingly obtains an extreme non-representative example.

 

  1. The null hypothesis should be rejected if the test value is -2.8, =0.01, and the test is left-tailed.

 

  1. The variance of the standard normal distribution and the t-distribution is 1.
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