Mathematics, 18.04.2020 03:49 mrashrafkotkaat
In a massive attempt to compete with General Electric, the Acme Light Bulb Company issued a newline of bulb. Acme took 100 bulbs from their new line and measured their lifetime. The mean measuredlifetime for the 100 bulbs was 1280 hours and the sample standard deviation for the 100 bulbs was138.32.
(a) The light bulb lifetimes come from an exponential probability distribution. If ? is the meanlifetime of the light bulbs, and the light bulb lifetimes are iid, give the probability distribution ofthe mean lifetime from the sample of 100 light bulbs. Specify the mean and standard deviationof this sample mean lifetime.(b) Construct a 90% confidence interval of the true mean lifetime of Acme
Answers: 1
Mathematics, 21.06.2019 17:30
Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.
Answers: 2
Mathematics, 21.06.2019 21:30
50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.
Answers: 2
Mathematics, 22.06.2019 04:30
Lucinda leaves money in her savings account for 8 years. she started with $800 and earned 3.5% interest compound annually. how much money is in her account?
Answers: 1
Mathematics, 22.06.2019 05:00
Abigail made a quilt that has an area of 4800 square inches. the length of the quilt is 1 1/3 times the width of the quilt. what are the dimensions of the quilt
Answers: 1
In a massive attempt to compete with General Electric, the Acme Light Bulb Company issued a newline...
Mathematics, 06.04.2020 18:36
Health, 06.04.2020 18:36
History, 06.04.2020 18:36
Biology, 06.04.2020 18:36
Mathematics, 06.04.2020 18:36
Mathematics, 06.04.2020 18:36