part 1 Question 1 of 5 (1 point) View problem in a pop-up Find each of...
part 2 Question 1 of 5 (1 point) View problem in a pop-up Find each of the following. Enter your answers rounded to two decimals. Part 1 2a12 for the 95% confidence interval 7/ 21.96 Part 2 out of 5 Z a/2 for the 88% confidence interval CHECK
Question 1 of 5 (1 point) View problem in a pop-up Find each of the following. Enter your answers rounded to two decimals. Part 1 2. for the 95% confidence interval -1.96 Part 2 zaz for the 88% confidence interval 2.21.55 Part 3 out of 5 3a/2 for the 99% confidence interval 2a/2
Question 7 of 9 (1 point) View problem in a pop-up 7.1 Section Exercise 11 For a random sample of 70 overweight men, the mean of the number of pounds that they were overweight was 30. The standard deviation of the population is 4.4 pounds. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place. Part 1 The best point estimate of the mean is 30.0 pounds. Part 2 out of 4 Find...
Question 7 of 9 (1 point) View problem in a pop-up 7.1 Section Exercise 11 For a random sample of 70 overweight men, the mean of the number of pounds that they were overweight was 30. The standard deviation of the population is 4.4 pounds. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place. Part 1 out of 4 The best point estimate of the mean is pounds. CHECK NEXT 7.1 Section...
Question 4 of 5 (1 point) View problem in a pop-up Find the critical value ta/2 needed to construct a confidence interval of the given level with the given sample size. Round the answers to three decimal places. Part 1 For level 90% and sample size 7 Critical value-1.943 Part 2 For level 98% and sample size 11 Critical value =2.764 Part 3 out of 4 For level 95% and sample size 25 Criticeal value- CHECK NEXT
Question 7 of 9 (1 point) View problem in a pop-up 7.1 Section Exercise 11 For a random sample of 70 overweight men, the mean of the number of pounds that they were overweight was 30. The standard deviation of the population is 4.4 pounds. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place. Part 1 The best point estimate of the mean is 30.0 pounds. Part 2 Find the 90% confidence...
Question 6 of 11 (3 points) View problem in a pop-up For the given confidence level and values of x and n, find the following. x = 48, n = 95, confidence level 80% Round the answers to four decimal places, if necessary. Part 1 out of 3 Find the point estimate. The point estimate for the given data is CHECK NEXT
Question 12 of 19 (1 point) View problem in a pop-up 10.2 Section Exercise 13 Question Traiic accidents: Traffic engineers compared rates of traffic accidents at intersections with raised medians with rates at intersections with two-way left-turn lanes. They found that out of 4655 accidents at intersections with raised medians, 2281 were rear-end accidents, and out of 4585 accidents at two-way left-turn lanes, 2037 were rear-end accidents. Check Answ Solve It Guided Solutio Part 1 out of 2 Assuming these...
Question 5 of 10 (1 point) View problem in a pop-up A missile guidance system has seven fail-safe components. The probability of each failing is 0.1. Assume the variable is binomial. Find the following probabilities. Round your answers to three decimal places 5.3 Section Exercise 16 Part 1 a. Exactly three will fail P (exactly three will fail)-.023 Part 2 b. More than three will fail. P (more than three will fail003 Part 3 out of 4 c. All will...
please answer both questions Question 5 of 17 (1 point) View problem in a pop-Up Approximately 10.8% of American high school students drop out of school before graduation. Assume the variable is binomial. Choose 18 students entering high school at random. Find these probabilities. Round intermediate calculations and final answers to three decimal places. Source: www.infoplease.com Part 1 No more than three drop out P(no more than three drop out)-0.878 Part 2 All 18 stay in school and graduate P(all...