Mathematics, 07.10.2021 18:30 lailalorinda
A delivery company claims that they deliver their packages in 2 days on average. You have been tasked with verifying their claim by another delivery company. You decide to take a random sample of 10 packages, record their delivery times, find the mean delivery time, and report the results with statistical measures for 95% confidence. You find that the mean time is 2.3 days with a sample standard deviation of 0.35 days.
Answers: 2
Mathematics, 21.06.2019 18:40
Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form: science fiction books to history books 2. write the ratios as fractions: dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.
Answers: 1
Mathematics, 21.06.2019 22:30
Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?
Answers: 3
Mathematics, 22.06.2019 01:50
If its non of them tell me..valerie took a day-trip. she drove from her house for a while and took a coffee break. after her coffee break, she continued driving. after 2 hours of driving after her coffee break, her distance from her house was 210 miles. her average speed during the whole trip was 60 miles per hour.valerie created the equation y−210=60(x−2) to represent this situation, where xx represents the time in hours from her coffee break and yy represents the distance in miles from her house.which graph correctly represents valerie's distance from her house after her coffee break?
Answers: 1
Mathematics, 22.06.2019 03:00
The sum of four times a number and three is two times the number minus twenty nine
Answers: 2
A delivery company claims that they deliver their packages in 2 days on average. You have been taske...
Biology, 12.08.2019 23:20
Chemistry, 12.08.2019 23:20
Mathematics, 12.08.2019 23:20
History, 12.08.2019 23:20
History, 12.08.2019 23:20
Mathematics, 12.08.2019 23:20
History, 12.08.2019 23:20
Chemistry, 12.08.2019 23:20
Computers and Technology, 12.08.2019 23:20
English, 12.08.2019 23:20
Mathematics, 12.08.2019 23:30