Question

Your last submission is used for 1. -/54 POINTS MY NOTES 0.674 0.841 1.036 1.282 1.645 1.960 2.054 2.326 2.576 2.807 3.091 3.291 confid. 50% 60% 70% 80% 90% 95% 96% 98% 99% 99.5% 99.8% 99.9% Please use the z.chart and confidence row provided on my website to answer all questions. https://www.albany.edu/%7E|r853689/normaldistribution neg grid.htm https://www.albany.edu/%7Ejr853689/normaldistribution zpos grid.htm In a simple random of 400 of Deadpool fights, Deadpool breaks the Fourth Wall in 225 of them . A 99.9% confidence interval for the true proportion of all fights in which Deadpool breaks the fourth wall is after the decimal.) (Answers to four plages Unless our sample is among the most unusual 1% of samples, the true proportion of all fights in which Deadpool breaks the fourth wall is between 12 (Answers to four places after the decimal.) Send a chat Vanessa claims that Deadpool breaks the Fourth Wall in half of his fights. Do we have evidence that she's underestimating the truth at each of the following levels? The associated p-value for this hypothesis test is (Answers to four places after the decimal.) At the 20% level: סח

Answer 1

n = 400 sample proportion of fights in which deadpool breaks the fourth wall = 225/400 = 0.5625 = p ? het P = Actual proportion of fights in which deadpool breaks the fourth wall 991 (I for p is z at 99% = 16 0.5625*(1-0.5625) . = 0.5625 I 2.576 vos you = 0.5625 I 0.0639 = a oso = (0.4986, 0.6264 asked in terms of * It asked 99% c e for P l ggol. cI as = (0.4986, 0.6264) defination) Ho: P = 0.5 2=002 H: P 70.5 under no 2*- b-0.5 ~ N(0,1) = 2.5 - 0.5625 -0.5 O.S *0.5 4oo p-value = 2 *P(Z > 2.5) = 2 * 0.0069 = 0.0124 b- valu La=0.2 = We reject Ho & Conclude that we don't have evidence that P= 1/2 ie we dence that she i i understanding the truth have