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
A two-tailed z-test found a test statistic of z = 2.153. At a 1% level of...
The test statistic in a two dash tailed test is z= -2.84. Determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. *Please show me a way to do it on the calculator (ti-84)*
A sample of 71 observations is selected from a normal population. The sample mean is 24, and the population standard deviation is 8. Conduct the following test of hypothesis using the 0.05 significance level. H0 : μ ≤ 23 H1 : μ > 23 a. Is this a one- or two-tailed test? (Click to select) One-tailed test Two-tailed test b. What is the decision rule? (Round the final answer to 3 decimal places.) (Click to select) Reject Accept H0 and (Click to select) accept reject H1 when z > ....
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
Multiple Choice: Question #1 A two tailed hypothesis test is being used to evaluate a treatment effect with ( a = .05). if the sample data produce a Z-score of ( z= -2.24), what is the correct decision? A. Reject the null hypothesis and conclude that the treatment has no effect B. Reject the null hypothesis and conclude that the treatment has an effect C. Fail to reject the null Hypothesis and conclude that the treatment has no effect D....
A researcher calculates is doing a two-tailed test and calculates a test statistic of z=-1.69 and her level of significance (alpha) is 0.05. Does she reject the null hypothesis? a) Yes b) No c) Need more information
1. Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide whether to reject Upper H 0 for the given level of significance alpha. Two-tailed test with test statistic z= -1.95 and alpha=0.04 P-value= ? (Round to four decimal places as needed.) Reject H0 or fail to reject? 2. Find the critical value(s) for a left-tailed z-test with alpha=0.01. Include a graph with your answer. The critical value(s) is(are) ___ (Round to two...
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?
You are performing a two-tailed z-test If a = 0.1, and your test statistic is z = - 3.4, do you: Reject Null Hypothesis O Fail to Reject Null Hypothesis
A sample of 31 observations is selected from a normal population. The sample mean is 11, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 10 H1: μ > 10 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? Reject H0 when z > 1.645 Reject H0 when z ≤ 1.645 What is the value of the test statistic? (Round your...
The test statistic in a two-tailed test is z=0.34 Determine the P-value and decide whether, at the 10% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. LOADING... Click here to view a partial table of areas under the standard normal curve. The P-value is nothing. (Round to four decimal places as needed.) This P-value ▼ sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because it...