Mathematics, 19.11.2019 09:31 leah7378
Based on a poll of 200 citizens, a community action group claims that 40% of the population is in favor of a curfew for children under 18 on weekday nights. a local parent group claims that the poll is not valid and that only 22% of the citizens favor a curfew. to determine whether this sample supports the population proportion of 0.40, a simulation of 100 trials is run, each with a sample size of 50 and a point estimate of 0.22. the minimum sample proportion from the simulation is 0.15, and the maximum sample proportion from the simulation is 0.27. the margin of error of the population proportion is found using an estimate of the standard deviation. what is the interval estimate of the true population proportion?
(0.18, 0.26)
(0.14, 0.30)
(0.06, 0.38)
(0.16, 0.28)
Answers: 2
Mathematics, 21.06.2019 13:50
Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4
Answers: 1
Mathematics, 21.06.2019 16:00
Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply
Answers: 2
Mathematics, 21.06.2019 16:30
Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.
Answers: 2
Based on a poll of 200 citizens, a community action group claims that 40% of the population is in fa...
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