Answer:
When your alpha is smaller than your p-value
Explanation:
According to the decision rule we know that we reject the null hypothesis when the alpha value is greater than the p-value and we retain the null hypothesis when the alpha value is less than the p-value.
Question 9 2.5 pts In which of the following situations would you retain the null hypothesis?...
Question 5 2 pts Which of the following statements is true? (a) we reject a null hypothesis if the p-value of the test is smaller than the level of the significance a. (b) we accept a null hypothesis if the p-value of the test is smaller than the level of the significance a. (c) we reject a null hypothesis if the p-value of the test is larger than the level of the significance a. . (a) . (b) . (c)
Question 9 2 pts Iftis greater than the critical value, then the groups are significantly different. the results are statistically significant. the null hypothesis should be rejected. All of the above.
(a) For the same data and null hypothesis, is the P-value of a one-tailed test (right or left) larger or smaller than that of a two-tailed test? pick one The P-value for a one-tailed test is smaller because the two-tailed test includes the area in both tails. The P-value for a one-tailed test is larger because the two-tailed test includes the area in only one tail. The P-value for a one-tailed test is larger because the two-tailed test includes the...
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...
Which statement is equivalent to a statistically significant independent t-test? Select all that are true. Retain the null hypothesis. The p-value is less than .05. The 95% confidence interval for the difference of means does not contain 0. Alpha is greater than .05.
Question 13 20 pts Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Various temperature measurements are recorded at different times during the summer in Holtville on n-60 days. The mean of 8 = 100°F is obtained, with 0 - 10°F. Using the 0.05 significance level, test the claim that the mean temperature is over 995 Hop-100; Hy w 100. Test statistic: 2-0.77. P-value: 0.7794. Because the...
You conduct a hypothesis test about a population proportion p at a significance level of a = .01 using a random sample of size n = 38. Your test statistic follows a standard normal distribution when the null hypothesis is true as an equality, and its value obtained from the sample is z = -2.75. Use the Distributions tool to help you answer the questions that follow. Select a Distribution Distributions 0 1 2 3 If you perform a lower...
Question 39 5 pts Use your calculator to duplicate the following table data as a matrix and conduct a X2 Test of Independence on your TI 83/84 device. Find the x2 (chi-square) value and P-value from these results. Cite my P-value for your answer. 252 24 208 23 my P-value = O My P-value is about 0.238 My P-value is about 0.762 O My P-value is about 0.374 O My P-value is about 0.626 Use your calculator to duplicate the...
On a certain portion of an experiment, a statistical test result yielded a p-value of 0.15. What can you conclude? If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 15% of the time, so the test is not statistically significant. 2(0.15) = 0.30 < 0.5; the test is not statistically significant. 0.15 > 0.05; the test is statistically significant. If the null hypothesis is true, one could expect...
1. Conduct a test of the null hypothesis that the mean height for all students in the Census at School database is equal to 155 cm vs the alternative that the mean Height is greater than 155 cm. Use a significance level of 0.05. a. State the null and alternative hypotheses. Ho: m = 155 Ha: m > 155 b. Provide the Statcrunch output table. Hypothesis test results: Variable Sample Mean Std. Err. DF T-Stat P-value Height 159.86 1.7311103 49...