Mathematics, 02.10.2019 19:30 macyfrakes
Fred is constructing a 95% confidence interval to estimate the average length (in minutes) of movies he watches. his random sample of 15 movies averaged 114 minutes long with a standard deviation of 11 minutes. what critical value and standard error of the mean should he use?
Answers: 1
Mathematics, 21.06.2019 15:30
Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.
Answers: 1
Mathematics, 21.06.2019 17:00
There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y
Answers: 1
Mathematics, 21.06.2019 19:30
The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?
Answers: 3
Mathematics, 21.06.2019 19:40
Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.
Answers: 1
Fred is constructing a 95% confidence interval to estimate the average length (in minutes) of movies...
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