Mathematics, 18.11.2020 17:10, issaaamiaaa15
Air quality measurements were collected in a random sample of 25 country capitals in 2013, and then again in the same cities in 2014. We would like to use these data to compare average air quality between the two years.
(a) Should we use a one-sided or a two-sided test? Explain your reasoning.
(b) Should we use a paired or non-paired test? Explain your reasoning.
(c) Should we use a t-test or a z-test? Explain your reasoning.
Answers: 1
Mathematics, 21.06.2019 18:00, milagrosee12
Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.
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Mathematics, 21.06.2019 19:00, princessjsl22
The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?
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Mathematics, 21.06.2019 19:40, spiritcampbell56
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
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Mathematics, 21.06.2019 23:00, Pankhud5574
Is a square always, sometimes, or never a parallelogram
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