Mathematics, 08.10.2020 17:01 veve1787
"D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an improved production process, it is believed that there has been an increase in the life expectancy of its "D" size batteries. A sample of 80 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours. Conduct a hypothesis test to determine whether there is statistically significant evidence to support that the life expectancy of batteries have improved. What is the p-value associated with the sample results?
Answers: 2
Mathematics, 21.06.2019 16:00, Maria3737
An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.
Answers: 2
Mathematics, 21.06.2019 23:20, elizediax8683
Which expression is a factor of 12x2 + 29x – 8? x – 8 2x – 1 3x + 8 4x + 1
Answers: 1
"D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an...
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