QUESTION 1 In which of the following situations, the one proportion Z-test will n_ot be applicable? n=725, x=15 and p0=0.025 n=450, x=70 and p0=0.15 n=80, x=3 and p0=0.94 n=355, x=9 and p0=0.18 QUESTION 2 It was found that in a study of air-bag effectiveness 1000 crashes of midsize cars equipped with air bags, 85 of the crashes resulted in hospitalization of the drivers. We want to test the claim that the air-bag hospitalization rate is 6.4% rate for crashes of midsize cars equipped with automatic safetly belts. Calculate the statistic and the p-value of the test. Round your answer to three decimal places. QUESTION 3 The average score on Midterm Exam over the past years was 80. With a new teaching curriculum introduced, it is believed that this score will change. A random sample of 16 students is selected and the mean score was found to be 75 with a standard deviation of 15. Assume the scores are normally distributed, what is the corresponding p-value of the test? QUESTION 4 An environmental researcher wants to know whether the mean amount of sulfur dioxide in the air in UAE cities is more than 1.19 parts per billion (ppb). She tested the hypotheses H0: [.1 S 1.19 versus Ha: p>1.19 using a signicance level a = 0.01. The p-value of the test is 0.009. If the true value of p is 1.21, the conclusion results in Both Type | and Type II errors. Correct decision. Type I error. Type II error. 4 points 4 points 4 points 3 points Save Answer Save Answer Save Answer Save