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.

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Chapter1: Starting With Matlab
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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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