Mathematics, 07.03.2020 01:29 granta1
The Student Recreation Center wanted to determine what sort of physical activity was preferred by students. In a survey of 68 students, 49 indicated that they preferred outdoor exercise over exercising in a gym. They estimated the proportion of students at the university who prefer outdoor exercise as ( 0.6139 , 0.8272 ), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval?
1) We are 95% confident that the proportion of exercise time which the average student spends outdoors is between 0.6139 and 0.8272.
2) We are certain that 95% of students will be between 0.6139 and 0.8272.
3) We are 95% confident that the proportion of all students at the university who prefer outdoor exercise is between 0.6139 and 0.8272.
4) We are 95% confident that the proportion of students surveyed who prefer outdoor exercise is between 0.6139 and 0.8272.
5) We cannot determine the proper interpretation of this interval.
Answers: 3
Mathematics, 21.06.2019 16:00
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Mathematics, 22.06.2019 00:30
(i really need ) read the story problem, and then answer the questions that follow. gordon works for a graphic design firm and is creating a label for a food truck vendor. the vendor specializes in finger food and wants to sell food in right conical containers so that they are easy for people to hold. to complete his label, gordon needs to collect several different measurements to ensure that the label he designs will fit the surface of the container. gordon has been told that the containers have a diameter of 4 inches and a height of 6 inches. part a: find the slant height of the cone. the slant height is the distance from the apex, or tip, to the base along the cone’s lateral surface. show your work. part b: find the measure of the angle formed between the base of the cone and a line segment that represents the slant height. part c: imagine two line segments where each represents a slant height of the cone. the segments are on opposite sides of the cone and meet at the apex. find the measurement of the angle formed between the line segments.
Answers: 1
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