DAT/565 Data Analysis and Business Analytics The Latest Version A+ Study Guide **********************************************
DAT 565 Entire Course Link https://www.onlinehelp123.com/dat-565 ********************************************** DAT 565 Wk 4 - Practice: Wk 4 Exercises The manufacturer of an airport baggage scanning machine claims it can handle an average of 530 bags per hour. (a-1) At α = .05 in a left-tailed test, would a sample of 16 randomly chosen hours with a mean of 510 and a standard deviation of 50 indicate that the manufacturer’s claim is overstated? Choose the appropriate hypothesis. a. H1: μ < 530. Reject H1 if tcalc > −1.753 b. H0: μ < 530. Reject H0 if tcalc > −1.753 c. H1: μ ≥ 530. Reject H1 if tcalc < −1.753 d. H0: μ ≥ 530. Reject H0 if tcalc < −1.753 multiple choice 1 a
b
c
d
(a-2) State the conclusion. a. tcalc = −1.6. There is not enough evidence to reject the manufacturer’s claim. b. tcalc = −1.6. There is significant evidence to reject the manufacturer’s claim. multiple choice 2 a
b