Consider the following null and alternative hypothesis:

FULL SCREEN |PRINTER VERSION NEXTY Consider the following null and alternative hypotheses: Ho: p = 0.75 versus H1 : p # 0.75. A random sample of 575 observations taken from this population produced a sample proportion of 0.81. a. If this test is made at a 10% significance level, would you reject the null hypothesis? Use the critical-value approach. Round your answer for z to two decimal places. Zobserved = Zcritical left = Zcritical right = We the null hypothesis. b. What is the probability of making a Type I error in part a? P(Type I error) = c. Calculate the p-value for the test. Based on this p-value, would you reject the null hypothesis if a = 0.02? What if a = 0.04? Round your answer for the p-value to four decimal places. p-value =