Mathematics, 15.12.2021 03:40 eksdeeexe
The average lifetime of a light bulb is 3000 hours with a standard deviation of 696 hours.
A simple random sample of 36 bulbs is taken.
(a) What is the expected value, standard deviation, and shape of the sampling distribution of ?
(b) What is the probability that the average lifetime in the sample will be between 3670.56 and 3809.76 hours?
(c) What is the probability that the average life time in the sample will be equal to or greater than 3219.24 hours?
(d) What is the probability that the average lifetime in the sample will be equal to or less than 3180.96 hours?
(e) How large of a sample needs to be taken to provide a 0.01 probability that the average life time in the sample will be equal to or greater than 3219.24 hours
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 17:50
F(x) = x2 − 9, and g(x) = x − 3 f(x) = x2 − 4x + 3, and g(x) = x − 3 f(x) = x2 + 4x − 5, and g(x) = x − 1 f(x) = x2 − 16, and g(x) = x − 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x − 1 arrowright
Answers: 2
Mathematics, 21.06.2019 20:00
Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?
Answers: 1
Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2
Answers: 2
You know the right answer?
The average lifetime of a light bulb is 3000 hours with a standard deviation of 696 hours.
A simpl...
Questions
English, 29.07.2019 10:00
History, 29.07.2019 10:00
Physics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Spanish, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
Mathematics, 29.07.2019 10:00
