Company X is considering employing one of the two training programs. Group 1 was trained by program A, group 2 by program C. For the first group, the time required to train the employees had an average of of 32.11 hours and a variation of 68.09 hours, while for the second group, the mean is 19.75 hour while the variation is 71.14. Which training program has less relative variability in its performance? Program A (18.97 percent) Program B (19.87 percent) Program A (19.87 percent) Program B (18.97 percent)

The dot plots below show the number of gym members who attended two different aerobics classes over a six-week period. Each class met three times per week.The variability for each class is 4. The difference between the mean number of gym members for each class is approximately how many times the variability? A. 3 B. 2 C. 5 D. 4

A tech company claims that their new software reduces the average time taken to process a specific task by 2 minutes compared to the existing software in the market. An independent tech reviewer wants to test this claim. They conduct an experiment with 40 users. Half of them use the new software, and the other half use the existing software. The differences in processing times (new software - existing software) are recorded for each user. The sample mean difference is found to be 1.5 minutes with a standard deviation of 1.2 minutes. Test the company's claim at a 1% significance level.

A task was timed for 60 cycles. It took an average of 1.32 minutes per cycle. The performance rating was 100 percent, and workday allowance is 6 percent. Determine each of the following. (Do not round intermediate calculations. Round the final answers to 2 decimal places.)        a.  Observed time minutes   b.  Normal time minutes   c.  Standard time minut

Joe has two routes he can drive to work. He wants to learn which route is the fastest. The time to drive each route varies a little every day.Joe assumes that each route will be open and safe to drive. Over the next two weeks Joe alternated driving the two routes. He timed the length of his drive on each route.He calculated the mean and standard deviation of the times for both routes. Route 1Route 2Mean25.2 minutes25.8 minutesStandard Deviation1.8 minutes8.9 minutes Which route has the possibility of a very short amount of time to drive to work? Which route results in the most consistent times? Which route is more likely to take a very long time on occasion? Group of answer choicesRoute 1, Route 2, Route 1Route 1, Route 2, Route 2Route 2 on all the answersRoute 1 on all the answersRoute 2, Route 1, Route 2Route 2, Route 2, Route 1Route 2, Route 1, Route 1

The manager of a mall conducted a survey among two groups (n1 = 100, n2 = 100) of visitors to the mall on different days. She found that the first group spent an average of 60 minutes in the mall, while the second group spent an average of 90 minutes in the mall.If the manager wishes to see the difference in the average times spent by the two groups in the mall, which of the following sets shows the null hypothesis and alternative hypothesis?Null Hypothesis: There is at least some difference in the average times spent by the two groups in the mall.Alternative Hypothesis: The difference in the average times spent by the two groups in the mall is 30 minutes.Null Hypothesis: There is no difference in the average times spent by the two groups in the mall.Alternative Hypothesis: There is at least some difference in the average times spent by the two groups in the mall.Null Hypothesis: There is at least some difference in the average times spent by the two groups in the mall.Alternative Hypothesis: There is no difference in the average times spent by the two groups in the mall.Null Hypothesis: There is no difference in the average times spent by the two groups in the mall.Alternative Hypothesis: There is a difference in the average times spent by the two groups in the mall, with a standard deviation of 30 minutes.