For a two-tailed test using z values at the .01 significance level we reject H0 if z ≤ -2.576 or if z ≥ 2.576.
True or False
For a two tailed test with 0.01 significance level, Critical z values = -2.576, 2.576
Hence,
The given statement is True.
For a two-tailed test using z values at the .01 significance level we reject H0 if...
A two-tailed z-test found a test statistic of z = 2.153. At a 1% level of significance, what would the correct decision be? Do not reject H0 Do not reject H1 Reject H1 Reject H0 Accept H0
If α = .01 for a two-tailed hypothesis test using the z test, the critical values are:
If a hypothesis test were performed at the .01 level of significance, for which of the following p-values should we reject H0? Group of answer choices .235 .060 .058 .015 .002
Determine the critical value or values for a one-mean z test at the 2 percent significance level if the hypothesis test is two tailed. z0.10=1.282 z0.05=1.645 z0.025=1.960 z0.01=2.326 z0.005=2.576 select the correct answer a. -2.576 b. -2.326 c. 2.326 d. 2.576 e. -2.326 and 2.326 f. -2.576 and 2.576
Please determine for each of the following whether you REJECT H0 or DO NOT REJECT H0. a. The tails for a two-tailed hypothesis test for the mean are defined by values z = ± 1.69. The test value is z = –1.83. b. The test statistic for a right-tailed hypothesis test for the mean with 99% confidence is z = 1.45. c. The test statistic for a two-tailed hypothesis test for the standard deviation is χ2 = 6.32. The sample...
1. Regarding a two-tailed z-test with an alpha of 0.05, we would need a Zobt with an absolute value less than 1.96 in order to reject the null hypothesis. True or False? 2. What happens to the probability of committing a Type I error if the level of significance is changed from α = 0.05 to α = 0.01? A. It increases B. It decreases C. It stays the same D. Cannot determine 3. Given a Zobt of -1.99 ,...
The test statistic of z=2.37 is obtained when testing the claim that p>0.2. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of α=0.10, should we reject H0 or should we fail to reject H0?
In a difference of proportion test with alpha = .05, the critical values(s) for a two-tailed test is/are -2.575 and 2.575 1.96 -1.645 and 1.645 -1.96 and 1.96 If the test statistic for a difference of means test has a p-value of .065, we could reject the Null Hypothesis at an alpha level of.10. True False
How to Find a Critical Z Value LEARNING OBJECTIVE: Calculate a critical z-score for a left-tailed, right-tailed, or two-tailed test. Select the correct statement. a.) The critical z-score for a left-tailed test at a 12% significance level is -0.45. b.) The critical z-score for a right-tailed test at a 9% significance level is 1.34. c.) The critical z-score for a two-sided test at a 4% significance level is 1.75. d.) The critical z-score for a two-sided test at a 20% significance level is 0.85.
Suppose we do not reject the t-test null hypothesis of H0: β1 = 0 for a regression. In this case, we think there is evidence that the X variable values help explain the Y variable values. True or False