Mathematics, 20.02.2020 22:03 uaodiase
The manager of a computer help desk operation has collected enough data to conclude that the distribution of time per call is normally distributed with a mean equal to 8.21 minutes and a standard deviation of 2.14 minutes. The manager has decided to have a signal system attached to the phone so that after a certain period of time, a sound will occur on her employees' phone if she exceeds the time limit. The manager wants to set the time limit at a level such that it will sound on only 8 percent of all calls. The time limit should be:
Answers: 1
Mathematics, 21.06.2019 20:30
Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints
Answers: 1
Mathematics, 22.06.2019 04:30
The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.
Answers: 3
Mathematics, 22.06.2019 10:30
Stefan's bookmark is 6 centimeters wide. its perimeter is 20 centimeters.what is the area of his bookmark? show your work.
Answers: 2
The manager of a computer help desk operation has collected enough data to conclude that the distrib...
History, 06.05.2020 04:21
Biology, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
Social Studies, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
Social Studies, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
English, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
Arts, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21
History, 06.05.2020 04:21
Mathematics, 06.05.2020 04:21