Question

Consider the following hypothesis test: H: p > 0.75 Ha: p<0.75 A sample of 300 items was selected. Compute the p-value and state your conclusion for each of the following sample results. Use Q=.05. Round your answers to four decimal places. a. p = 0.68 p-value Conclusion: p-value - Select your answer H b. p = 0.72 HO P-value Conclusion: p-value Select your answer - C: 7 = 0.7 p-value Conclusion: p-value Select your answer d. P = 0.79 Но 7:2 7/30 p-value

Answer 1

sal: Criven, Ho: PI 0.75 Hai P<0.75 (left-tailed) m = 300 id=0.05 la) = 0.68 Test - statistic (Z) = ô -P P(1-P) 'n Z- 0.68 -0.75 -2.8 = 0.75(1-0.75) 300 P-value P(Z < -2.8) = 0.0026 P-value aq=0.05. So, we reject Ho. (b) 8 = 0.72 Z 0.74 -0.75 -1.9 0.75*0.25 300 P-value PIZZ-1.2) - 0. 1151 p-value y X=0.05. So, we fail to reject Ho. (c) 2 - Z - 0.7 -0.75 = -१ 0.75* 0.25 300 P-value P(Z <-9) 0.0998 p-value < 0=0.05. So, we rejich Ho. (d) Ô p = 0.79 z = 0.79-0.75 1.6 0.75*0.25 300 po value 0.0 548 P-value Y d=0:05. So, wel fail to reject Ho.