Just Checking
2. A consumer watchdog organization received customer complaints about
the...
Mathematics, 05.05.2020 15:35 henry83
Just Checking
2. A consumer watchdog organization received customer complaints about
the performance of one brand of batteries. To investigate, the researchers
purchased 24 of these batteries and ran them until they died. This sample
lasted a mean of 47 hours with a standard deviation of 3 hours.
a) What assumption must we make about battery life in order to use a t
model?
b) Find a 95% confidence interval for the mean lifespan of this brand of
batteries.
c) Write a conclusion based on your confidence interval.
Answers: 3
Mathematics, 21.06.2019 18:30
Ill mark the brainliest if you me with the these three questions 7,8,9
Answers: 2
Mathematics, 21.06.2019 19:40
Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y
Answers: 2
Mathematics, 22.06.2019 05:00
Me get the answer and explain to me the steps to solve it would be greatly appreciated : )
Answers: 2
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