Question

3/5 4/8/2018 Section 8.5 Sample Size Homework-hemam b 3. ne the sample size n needed to construct a 90% confidence interval to estimate the population mean for the following margins of error when ? 91. a) 10 b) 15 c) 20 3 Click the icon to view a table of standard normal cumulative probabilities a) n- b) n- (Round up to the nearest integer.) (Round up to the nearest integer.) (Round up to the nearest integer.) c) n- 3: Cumulative Probabilities for the Standard Normal Distribution FIRST DIGIT OF z SECOND DIGIT OF z 0.00 0.01 0.02 003 0.04 0.05 0.060.07 0.Os .09 0.8413 0.8438 0.8461 08485 08508 0.8531 0.8554 0.8577 8599 0s621 864

Answer 1

10-91 2 F> (b) (5-( x 군o.os vn ラ 99 Vn