Mathematics, 25.11.2019 19:31 kaileyy06
Acompany has developed a new ink-jet cartridge for its printer that it believes has a longer life-time on average than the one currently being produced. to investigate its length of life, 225 of the new cartridges were tested by counting the number of high-quality printed pages each was able to produce. the sample mean and standard deviation were determined to be 1511.4 pages and 35.7 pages, respectively. the historical average lifetime for cartridges produced by the current process is 1502.5 pages. write down the symbolic form of the hypotheses.
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Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 23:30
Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year
Answers: 1
Mathematics, 22.06.2019 00:00
The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?
Answers: 1
Mathematics, 22.06.2019 02:00
Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?
Answers: 1
Acompany has developed a new ink-jet cartridge for its printer that it believes has a longer life-ti...
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