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 Knowledge Check
A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. Find the test statistic to decide whether the mean transaction time exceeds 60 seconds. Multiple Choice
1.457
2.037
2.333
1.848
The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 56 gram. The process standard deviation is known to be 0.77 gram. A random sample of 49 candy bars yields a mean weight of 55.82 gram. Which are the hypotheses to test whether the mean is smaller than it is supposed to be?
Multiple Choice
H0: μ ≤ 56, H1: μ > 56
H0: μ ≥ 56, H1: μ < 56
H0
: μ = 56,
H1
: μ ≠ 56
H0: μ < 56, H1: μ ≥ 56