Answer Happy

If you want to be 99% confident of estimating the population mean to within a sampling error of ±5 and the standard deviation is assumed to be 17, what sample size is required? The sample size required is (Round up to the nearest integer.) + Screen Shot 2022-07-09 at 1.28.14 PM ✓ D a A sample size of is needed. (Round up to the nearest integer.) If you want to be 95% confident of estimating the population proportion to within a sampling error of ±0.04, what sample size is needed? ✪ C a. t= Q Search C Screen Shot 2022-07-09 at 1.27.50 PM ✓ å Determine the upper-tail critical value tax/2 in each of the following circumstances. a. 1-α=0.90, n = 29 b. 1-α = 0.99, n = 29 (Round to four decimal places as needed.) Q Search d. 1-α=0.90, n = 35 e. 1-α = 0.95, n = 48 c. 1-α=0.90, n = 19 Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution.