Mathematics, 22.07.2020 20:01 deehunchoo
Monthly rent was determined for each apartment in a random sample of 100 apartments around Madison. An approximate 95% percent confidence interval for the true mean monthly rent for apartments in Madison based on this sample is ($843, $924). Which of the following statements is a correct interpretation of the 95 % confidence level?
A. About 95 percent of all rental prices in Madison are between $843 and $924.
B. About 95 percent of the 100 rental prices in this sample are between $843 and $924.
C. There is a probability of 0.95 that the true mean is between $843 and $924.
D. In repeated sampling, the method produces intervals that include the population mean approximately 95 percent of the time.
E. In repeated sampling, the method produces intervals that include the sample mean approximately 95 percent of the time.
Answers: 3
Mathematics, 21.06.2019 18:50
The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
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Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q
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Monthly rent was determined for each apartment in a random sample of 100 apartments around Madison....
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