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The value of online courses. A Pew survey asked college presidents whether or not they believed that online courses offer an equal educational value when compared with courses taken in the classroom. The presidents were classified by the type of educational institution. Here are the data:
(a) Discuss different ways to plot the data. Choose one way to make a plot and give reasons for your choice.
(b) Make the plot and describe what it shows.
The English Department wants to know whether there is a difference in the proportions of female students taking Eng 110 and Eng 100 courses. Samples are collected from each class: Eng 110 sample found 16 out of 29 students in class and Eng 100 ..
Water flow into a process unit through a 9 - cm ID pipe at a rate of 3.6 m3/h. Calculate the kinetic energy for this stream in J/s.
A biologist has found the average weight of 12 randomly selected mud turtles to be 8.7 lb with standard deviation 3.6 lb. find a 90% confidence interval for the population mean weight of all such turtles.
Using laplace transforms solve the following problems: 1. Find Y(t) if Y'''' + 2Y'' +Y = 3 + cos 2t with Y(0) = Y'(0) = Y''(0) = Y'''(0) please show the partial fraction expansion and how it was obtained..do not need to invert.
1.a researcher was interested in determining whether incentives and how they were offered affected the response rate in
A pump manufacturer knows from past records that, in general, the probability of a certain specialty pump working continuously for fewer than 2 years is 0.3; the probability that it will work continuously for 2 to 5 years is 0.5, and the probabili..
Drug is effective on 89% of women and 65% of men. It is known that 66% of the people who take the drug are women. What is the probability that the drug is effective?
suppose we watch the price of the dow jones industrial index for three days.assume there is a 6040 chance that the
A bag contains 8 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
Consider the case where we have n observations, sampled from a binomial pdf (our parameter estimator can therefore be given by X/n). Assume that the margin of error is 6%.
To test the effectiveness of four different types of lawn fertilizer, each type was applied to six different lawns. The same size patch of lawn was mowed for all 24 test units and the grass clippings were weighed
q1. consider the hourly payments of a random sample of employees of a food processing plant given in diagrams below150
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