Mathematics, 18.10.2020 15:01, careykrysta
A computer software vendor wants to estimate the number of times a computer will crash with it's new operating system over the course of a year. A system administrator installs the operating system on a random sample of 41 computers. At the end of a year, the sample mean number of crashes is 6.9, with a standard deviation of 3.2. Find the confidence interval at a 95% confidence level for the mean number of crashes a computer will have with the new operating system over the course of a year.
The Sample Mean is
and the Margin of Error is
, so the confidence interval is (
,
). Which means that we are
confident that the true population mean number of times a computer crashes with the new operating system during the course of a year is between [LowerLimit] and [UpperLimit] .
Answers: 1
Mathematics, 21.06.2019 23:30, niquermonroeee
Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons
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Mathematics, 22.06.2019 06:30, vincentmoine
Mr. mole left his burrow and started digging his way down. a(t) models mr. mole's altitude relative to the ground (in meters) after t minutes. a(t)=-2.3t-7 how fast did mr. mole descend?
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