Mathematics, 18.10.2019 17:30, karebareyo
An electrical engineer wishes to compare the mean lifetimes of two types of transistors in an application involving high-temperature performance. a sample of 60 transistors of type a were tested and were found to have a mean lifetime of 1827 hours and a standard deviation of 164 hours. a sample of 180 transistors of type b were tested and were found to have a mean lifetime of 1658 hours and a standard deviation of 219 hours. let μx represent the population mean for transistors of type a and μy represent the population mean for transistors of type b. find a 95% confidence interval for the difference μx−μy . round the answers to three decimal places.
Answers: 3
Mathematics, 21.06.2019 15:00, Broov
Asap the total attendance for all of a baseball league in 2012 was about 7.5×107 fans, while the attendance for the tornadoes in 2012 was about 1.5×106 fans. about how many times more was the attendance for the entire baseball league than the attendance for just the tornadoes? 50 times more 10 times more 2 times more 5 times more
Answers: 2
An electrical engineer wishes to compare the mean lifetimes of two types of transistors in an applic...
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