Mathematics, 17.06.2020 19:57 katswindle11
Five occupancy in a city is an indication of the economic health of the region in which it is located. A random sample of offices in two cities was selected, and the number of vacancies was recorded. Construcr a 95% confidence interval to estimate the difference in vacancy rates between these two cities. What conclusions can be made?
Occupancy by City
City 1 City 2
x1 = 22 x2 = 12
n1 = 155 n2 = 135
A. Since the confidence interval does include zero, there is no evidence that the vacancy rates are different between the two cities.
B. Since the confidence interval does not include zero, there is no evidence that the vacancy rates are different between the two cities.
C. Since the confidence interval does not include zero, there is evidence that the vacancy rates are different between the two cities.
D. Since the confidence interval does include zero, there is evidence that the vacancy rates are different between the two cities.
Answers: 1
Mathematics, 21.06.2019 15:30
The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?
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Mathematics, 21.06.2019 22:20
The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?
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