Question

For One Population: Show your work for finding Test value, Critical value(s), or P-value. For Two Populations: Use your calculator to give the values of Test Value and P-value. . . . o O o Indicate your parameter Indicate the claim List the given information Then start your five steps. Pay attention to the method, such as Traditional or P- value Put the step numbers inside a box For step (1): Indicate Ho Indicate Hi Tell if Ho or H1 is the claim (put the word claim inside parentheses in front of the claim sentence) o Identify the type of test such as right-tail test, left-tail test, or two-tail test o The name of the test is in the direction of Hi For step (2): Find Critical Value (CV) for Traditional method Find Test value for P-value method For step (3) Find Test value for Traditional method Find P-value for P-value method For step (4), decide to reject Ho or not reject Ho. Circle your result. For Traditional method, draw the bell curve. Separate critical region from non-critical region using CV and locate your test value on the graph o For P-value method, compare your P-value with a. For step (5), write your summary according to the slide #5 of lesson 8.2. Other similar statements are not expectable! On this step: Underline is or is not, also underline reject or support. O O O o

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Answer 1

* Solution: - Gives: - Mo=14, n=36, X = 11:8, S=2.7&=0.01 The problem is to test Ho M=Mo = 14 Is Hi le 14 Test statistica t = x - Moto (As Poph std-dess is unknown, t test is H-8-14 used) 2.736 t - - 4.8889 Critical value - At 1%.1.o.s. tn-l, a = t35,0.01 .: t35, 0-0) 2.438 t35 – 2.438 Decision! - As tcal <- t35, we reject Ho at lllos. Conclusion: There is sufficiest evidence to conclude that avg age of the planes is less than the national average.