Use the sample data and confidence level given below to complete parts (a) through (d). A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4949 patients treated with the drug, 184 developed the adverse reaction of nausea. Construct a 99% confidence interval for the proportion of adverse reactions. . . . a) Find the best point estimate of the population proportion p. .037 (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E = .007 (Round to three decimal places as needed.) c) Construct the confidence interval.

.046 Type an integer or a decimal. Do not round.) 3. Identify the null and alternative hypotheses. lo: p = .046 -l1: p > .046 Type integers or decimals. Do not round.) Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: Less than 56% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0. 1895. . . . a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho.) Choose the correct answer below. O A. Fail to reject Ho because the P-value is greater than a. O B. Reject Ho because the P-value is greater than a. O C. Reject Ho because the P-value is less than or equal to a. O D. Fail to reject Ho because the P-value is less than or equal to a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. The percentage of adults that would erase all of their personal information online if they could is more than or equal to 56%. O B. There is not sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is less than 56%. O C. There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is less than 56%. O D. The percentage of adults that would erase all of their personal information online if they could is less than 56%.In a newspaper's survey of 503 people, 54.9% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk display results from a test of the claim that half of us say that we should replace passwords with biometric security. Use the normal distribution as an approximation to the binomial distribution. Use the display and a 0.05 significance level to complete parts (a) through (e). Sample proportion: 0.5487078 Test Statistic, Z: 2. 1848 Critical z: + 1.9600 P-value: 0.0289 a. Is the test two-tailed, left-tailed, or right-tailed? Choose the correct answer below. O right-tailed O left-tailed O two-tailed b. What is the test statistic? Z= 2.18 (Round to two decimal places as needed.) c. What is the P-value? P-value = .029 (Round to three decimal places as needed.) d. What is the null hypothesis, and what do you conclude about it? The null hypothesis is Ho: p = .5, where p denotes the population proportion of people who say that we should replace passwords with biometric security. Reject the null hypothesis. (Type an integer or a decimal. Do not round.) e. What is the final conclusion? There is sufficient evidence to support the claim that half of us say that we should replace passwords with biometric security