Assume for a given study that the null hypothesis asserts the expected value of a phenomenon is 10. A research study results in a 95 percent confidence interval reported as [7.142, 9.865]. What decision should be made based on this confidence interval (for a two-tailed test with an alpha level of 0.05 or 5%)?
Group of answer choices
Fail to reject the null hypothesis
Fail to reject the alternative hypothesis
Reject the null hypothesis
Perform a hypothesis test before making a decision.
| Reject the null hypothesis |
Null hypothesis value
not included between the given confidence interval.
Assume for a given study that the null hypothesis asserts the expected value of a phenomenon...
1.) Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). The test statistic in a two-tailed test is z = 1.95. Group of answer choices 0.0256; reject the null hypothesis 0.9744; fail to reject the null hypothesis 0.0512; reject the null hypothesis 0.0512; fail to reject the null hypothesis 2.) Use the confidence level and sample...
The null hypothesis states there will be no difference in scores on the ADS between face-to-face counseling and video conference counseling. The results are t(38) = 0.258, p = .798. Group Statistics Group N Mean Std. Deviation Std. Error Mean ADS face to face video 20 20 9.2500 9.0000 3.14350 2.97357 .70291 .66491 Independent Samples Test Levene’s Test for Equality of variance t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence...
Regarding the null hypothesis, what would be the decision made for a t-test of ‘no difference’ that returns a p-value of 0.000? Assume an alpha value of 0.05. A). Fail to reject the null hypothesis. B) Reject the null hypothesis.
1) Select the answer with the correct choices for scenarios A and B regarding the null hypothesis (H0). Scenario A - If we have chosen an alpha (α) of .05 for a two tailed test and our Z obtained is 1.70, what decision do we make regarding the null hypothesis (H0)? Scenario B - If we have chosen an alpha (α) of .01 for a left tailed test and our Z obtained is -2.24, what decision do we make regarding...
Which of the following is NOT a criterion for making a decision in a hypothesis test?Question content area bottomPart 1Choose the correct answer below.A.If the test statistic falls within the critical region, the decision is to reject the null hypothesis.B.If P-value≤α, the decision is to reject the null hypothesis. Otherwise, we fail to reject the null hypothesis.C.If the P-value is less than 0.05, the decision is to reject the null hypothesis. Otherwise, we fail to reject the null hypothesis.D.If a...
We have created a 95% confidence interval for µ with the result (10, 16). What conclusion will we make if we test H0: µ = 16 versus HA: µ ≠ 16 at α = 0.05? Reject the null hypothesis. Accept the null hypothesis. Fail to reject the null hypothesis. Reject the alternative hypothesis. No decision can be made from the information given.
1.) Assume that a sample is used to estimate a population proportion p. Find the margin of error m that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places. 95% confidence; n = 380, x = 50 Group of answer choices 0.0340 0.0408 0.0306 0.0357 2.) Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A researcher claims that 62% of voters favor gun control. Assuming that...
If the p-value for a hypothesis test is 0.07 and the allowed probability of making a Type I error is 0.05, then the correct decision is to O reject the null hypothesis only if it is a one-tailed test. O not reject the null hypothesis. O reject the null hypothesis. O not reject the null hypothesis only if it a two-tailed test.
(a) Suppose the null and alternative hypothesis of a test are: H0: μ= 9.7 H1: μ >9.7 Then the test is: left-tailed two-tailed right-tailed (b) If you conduct a hypothesis test at the 0.02 significance level and calculate a P-value of 0.07, then what should your decision be? Fail to reject H0 Reject H0 Not enough information is given to make a decision
Null Hypothesis Conclusion 07 Use the given information to state the conclusion about the null hypothesis HO Assume a significance level of 0.01. Originalbec claim: The percentage of settled medical malpractice suits is. at least 50% The hypothesis test results in a P-value of 0.012. Answer 1. Reject Ho because the P-value is greater than alpha. 2.Fail to reject reject Ho because the P-value is less than alpha. 3. Fail to reject reject Ho because the P-value is greater than...