Mathematics, 29.04.2021 04:10 mvtthewisdead
To test the durability of cell phone screens, phones are dropped from a height of 1 meter until they break. A random sample of 40 phones was selected from each of two manufacturers. The phones in the samples were dropped until the screens broke. The difference in the mean number of drops was recorded and used to construct the 90 percent confidence interval (0.46,1.82)
to estimate the population difference in means.
Consider the sampling procedure taking place repeatedly. Each time samples are selected, the phones are dropped and the statistics are used to construct a 90 percent confidence interval for the difference in means. Which of the following statements is a correct interpretation of the interval?
Answers: 2
Mathematics, 21.06.2019 12:30
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Answers: 1
Mathematics, 21.06.2019 18:30
According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.
Answers: 1
Mathematics, 21.06.2019 22:00
What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?
Answers: 2
Mathematics, 22.06.2019 00:30
Find the area of just the wood portion of the frame. this is called a composite figure. you will need to use your values from problem #2need all exepct 4 answerd if you can
Answers: 1
To test the durability of cell phone screens, phones are dropped from a height of 1 meter until they...
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