Perform the indicated test of hypotheses, based on the information given.a. Test Ho: μ = 212 vs H₁ : µ< 212 @ a= 0.10, o unknown n = 36, x = 211.2, s = 2.2Test Ho: μ = −18 vs H₁ : µ> -18 @ a = 0.05, o = 3.3 n = 44, x=-17.2, s = 3.1b.ac. Test Ho: μ = 24 vs H₁ : µ‡24 @ a = 0.02, o unknown n = 50, x= 22.8, s = 1.9

Answered: Perform the indicated test of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Johanna has conducted a hypothesis test for H0:μ=72 vs. Ha:μ≠72, found a p-value of 0.07, and decided not to reject the null hypothesis. What conclusion is associated with this decision?A. There is not evidence to show that μ≠72.B. There is evidence to show that μ=72.C. There is evidence to show that μ≠72.D. There is not evidence to show that μ=72.
Solve B to D
While testing the null and alternate hypothesis:H0: mu=50 vs. Ha:mu not equal 50n=100p-value = 0.9357alpha = 0.05What is the correct decision? A. Do not reject H0 B. Reject H0 C. none of these D. Reject Ha
Suppose that we calculated Rs=.21 (n=15). Do we reject or accept the null hypothesis at p<.01
A sample of n sludge specimens is selected and the pH of each one is determined. The one-sample t test will then be used to see if there is compelling evidence for concluding that true average pH is less than 7.0. What conclusion is appropriate in each of the following situations? USE SALT (a) n = 8, t= -2.8, a = 0.05 O Reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. O Do not reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Do not reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. (b) n = 15, t= -3.5, a = 0.01 O Reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. O Do not…
Let n₁ = 50, X₁ = 40, n₂ = 50, and X₂ = 20. Complete parts (a) and (b) below. a. At the 0.05 level of significance, is there evidence of a significant difference between the two population proportions? Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: ₁2π₂ H₁: π₁ π₂ C. Ho: π₁ #1₂ H1: П1 =П2 Calculate the test statistic, ZSTAT, based on the difference P₁ - P2. The test statistic, ZSTAT, is (Type an integer or a decimal. Round to two decimal places as needed.) Calculate the p-value. O D. Ho: ₁ = π₂ H₁: π₁ #π₂ 퍼 The p-value is. (Type an integer or a decimal. Round to three decimal places as needed.)
Consider the hypotheses below. H0: μ=50 H1: μ≠50 Given that x=57, s=12, n=30, and α=0.05, answer the questions below.
50% of students entering four-year colleges receive a degree within six years. Is this percent different from for students who play intramural sports? 117 of the 239 students who played intramural sports received a degree within six years. What can be concluded at the level of significance of αα = 0.05? The null and alternative hypotheses would be: Ho: ? μ p Correct Select an answer = < ≠ > Correct (please enter a decimal) H1: ? p μ Correct Select an answer < ≠ = > Correct (Please enter a decimal) The test statistic ? z t Correct = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
Ho:μ = 1,500 H:> 1,500 x = 1,515, n = 112, o = 100, a = .10 a. Use the data given to test the following hypotheses. (Round your answer to 2 decimal places.) The value of the test statistic is b. Use the p-value to obtain the results. (Round your answer to 4 decimal places.) Since the p-value of and we is Since the observed = 1,515 is than a .10, the decision is to: c. Solve for the critical value required to reject the mean. (Round your answer to 2 decimal places.) than the critical = Appendix A Statistical Tables ,the decision is to:

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