Give as much information as you can about the P-value of a t test in each...
Give as much information as you can about the P-value of a t test in each of the following situations. (Round your answers to three decimal places.) (a) Upper-tailed test, df = 9, t = 2.0 P-value < 0.005 0.005 < P-value < 0.01 0.01 < P-value < 0.025 0.025 < P-value < 0.05 P-value > 0.05 (b) Upper-tailed test, n = 13, t = 3.2 P-value < 0.005 0.005 < P-value < 0.01 0.01 < P-value < 0.025 0.025...
For each test statistic below, give the p value (do not round p): a. t = 2.20, df = 15, one-tailed test b. Z = 1.10, one-tailed test c. t = -2.65, df = 20, two-tailed test d. Z = -.26, two-tailed test
Determine the t critical value(s) that will capture the desired t-curve area in each of the following cases. (Assume that central areas are centered at t = 0. Round your answers to three decimal places.) (a) Central area = 0.95, df = 10 ± (b) Central area = 0.95, df = 25 ± (c) Central area = 0.99, df = 25 ± (d) Central area = 0.99, df = 40 ± (e) Upper-tail area = 0.01, df = 30 (f)...
Find the critical value of t from Appendix D for the following situations. Specify the correct degrees of freedom, whether the value is “+/-“ or is “+ or –“ and the df you used in the table if the value isn’t listed. a) N = 32, α = .05, one-tailed independent groups t-test b) N = 28, α = .01, two-tailed independent groups t-test c) N = 26, α = .05, one-tailed independent groups t-test d) N = 41, α...
Determine the t critical value for a lower or an upper confidence bound in each of the following situations. (Round your answers to three decimal places.) (a) Confidence level = 95%, df = 5 (b) Confidence level = 95%, df = 20 (c) Confidence level = 99%, df = 20 (d) Confidence level = 99%, n = 5 (e) Confidence level = 97.5%, df = 23 (f) Confidence level = 99%, n = 36 You may need to use the...
Example 8.23. #4. With your cakeulator find the critical value (or val ues) for the t test for each. Then draw the corresponding picture a. n-15, -0.05, right-tailed b. n-23, a 0.005, left-tailed c, n 28, α-0.01, two-tailed d. n 17, a 0.02, two-tailed Solutions a. n-15, df-14 and t- 163 and te Example 8.23. #4. With your cakeulator find the critical value (or val ues) for the t test for each. Then draw the corresponding picture a. n-15, -0.05,...
Determine the t critical value for a lower or an upper confidence bound in each of the following situations. (Round your answers to three decimal places.) (a) Confidence level = 95%, df = 5 2.571 (b) Confidence level = 95%, df = 20 2.086 (c) Confidence level = 99%, df = 20 2.845 x (d) Confidence level = 99%, n = 5 4.604 (e) Confidence level = 97.5%, df = 23 2.398 (f) Confidence level = 99%, n = 36...
For each statistic below, give the p value (do not round p): 1. t=2.20, df=15, one tailed test
From the given information in each case below, state what you know about the P-value for a chi-square test and give the conclusion for a significance level of α = 0.01. Use Table 8 in Appendix A. (Enter your answers to three decimal places.) (a) χ2 = 7.69, df = 2 < P-value < Conclusion: Reject H0Fail to reject H0 (b) χ2 = 13.04, df = 6 < P-value < Conclusion: Reject H0Fail to reject H0 (c) χ2 = 17.79, df = 9...
From the given information in each case below, state what you know about the P-value for a chi-square test and give the conclusion for a significance level of α = 0.01. Use Table 8 in Appendix A. (Enter your answers to three decimal places.) (a) χ2 = 5.04, df = 2 __________< P-value < ___________ Conclusion: Reject H0 Fail to reject H0 (b) χ2 = 12.12, df = 6 _______< P-value <___________ Conclusion: Reject H0 Fail to reject H0 (c) χ2 = 21.35,...