Question 1. Version 1*/1. Score: 0/1 The best point estimate of the population mean is: O the sample mode the sample midrange O the sample median O the sample mean Score: N/A/1 Message instructor Question 2. Version 1*/1. Score: 0/1 With a large sample size such as n = 100, we do not need to assume the distribution is normal in order to compute a 95% confidence interval for the mean. O True O False Score: N/A/1 Message instructor Question 3. Version 1*/1. Score: 0/1 A 95% confidence interval for the mean was computed with a sample of size 90 to be (16,22). Then the Error is +3. O True O False Score: N/A/1 Message instructorQuestion 4. Version 1*/1. Score: 0/1 A 95% confidence interval for the mean was computed with a sample of size 100 to be (10, 14). Then the Error is +2. O True O False Score: N/A/1 Message instructor Question 5. Version 1*/1. Score: 0/1 A researcher computed a 90% confidence interval for the mean age of college students. If the researcher had instead used a 95% confidence interval, then the computed margin of error would have been smaller. O True O False Score: N/A/1 Message instructor Question 6. Version 1*/1. Score: 0/1 Increasing the sample size and decreasing the level of confidence are two ways of obtaining a narrower margin of error for a confidence interval. O True O False Score: N/A/1 Message instructorQuestion 7. Version 1*/1. Score: 0/1 If the sample size is increased and the standard deviation and confidence level stay the same, then the margin of error will also be increased. O True O False Score: N/A/1 Message instructor Question 8. Version 1*/1. Score: 0/1 If the level of confidence is increased from 90% to 95% then the margin of error will be increased. O True O False Score: N/A/1 Message instructor Question 9. Version 1*/1. Score: 0/3 Suppose that textbook weights are normally distributed. You measure 50 textbooks' weights, and find they have a mean weight of 33 ounces. Assume the population standard deviation is 11.3 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Round answers to 2 decimal places. Select an answer v Score: N/A/1 N/A/1 N/A/1 Had help available: Written Example 7 Message instructorQuestion 10. Version 1*/1. Score: 0/1 Express the confidence interval 0.418 + 0.04 in interval form. You may use (lower, upper) or [lower, upper] formats. Example: (-0.223, 0.363) Do not round your answer. Score: N/A/1 Message instructor Question 11. Version 1*/1. Score: 0/1 Given the interval estimate for the mean (5, 14.6), the point estimate for the mean is and the margin of error is Score: N/A/0.5 N/A/0.5 Had help available: Read DlVideo Message instructor Question 12. Version 1*/1. Score: 0/1 You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately o = 60.1. You would like to be 99% confident that your estimate is within 5 of the true population mean. How large of a sample size is required? Round up to nearest whole number. n = Score: N/A/1 Had help available: Video D'Written Example Message instructor