Exam (elaborations) MATH 221 Week 5 Homework well explained 2023 latest

Question 1 2 / 2 pts From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 20.53 with a standard deviation of 3.54. What is the 95% confidence interval for the amount of time spent on administrative issues? (19.24, 24.14) (16.99, 24.07) (13.45, 27.61) X (19.62, 21.44) Question 2 2 / 2 pts If a confidence interval is given from 43.85 up to 61.95 and the mean is known to be 52.90, what is the maximum error? X9.05 4.25 43.85 18.10 Question 3 2 / 2 pts If a computer manufacturer needed a supplier that could produce parts that were very precise, what characteristics would be better? wide confidence interval with high confidence level narrow confidence interval at low confidence level wide confidence interval with low confidence level Xnarrow confidence interval at high confidence level Question 4 2 / 2 pts Which of the following are most likely to lead to a wide confidence interval? large mean X large standard deviation small standard deviation large sample size Question 5 2 / 2 pts If you were designing a study that would benefit from very disperse data points, you would want the input variable to have: This study source was downloaded by from CourseH on :42:40 GMT -06:00 X a large standard deviation a small maximum error a large sample size a large mean