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Question: Driving school A driving school owner believes that Instructor A is more effective than Instructor B at preparing students to pass the state's driver's license exam. An incoming class of 100 students is randomly assigned to two groups, each of size 50. One group is taught by Instructor A; the other is taught by Instructor B. At the end of the course, 30 of Instructor A's students and 22 of Instructor B's students pass the state exam.
(a) Do these results give convincing evidence at the a = 0.05 level that Instructor A is more effective?
(b) Describe a Type I and a Type II error in this setting. Which error could you have made in part (a)?
Over the past few years the percentage of students who leave Lakeland College at the endof the first year has increased. Last year Lakeland started a voluntary one-week orientationprogram to help first-year students adjust to campus life.
What issues did the third world radicalism address? How successful were their leaders in implementing their goals?
What is the probability for the given frequency distribution?
Using the data set that you created in the previous exercise, find graphical and numerical summaries for bots and spam messages per day.
A box contains 3 blue marbles and two red marbles. If two marbles are drawn randomly and without replacement, find the probability that (a) at least one of the marbles is blue
An experiment consists of recording the type of play (pass or rush) and the yards gained (-99, -98, -97, . . . , 22, 21, 0, 1, 2, . . . , 97, 98, 99) on a randomly selected first down. How many outcomes are in the sample space for this experiment?
Travel. Suppose the probability that a U.S. resident has traveled to Canada is 0.18, to Mexico is 0.09, and to both countries is 0.04.
the piron software company currently develops marketing software for primarily service-based organizations. recently
What is the purpose for post tests? To determine how much difference exists between the treatments.
The Ohio State Bar Association regularly surveys the legal community with regard to the economics of law practice.
in a recent survey ten percent of the homes in montana were found to own a miley cyrus action figure. in a sample of
mark gershon owner of a musical instrument distributorship thinks that demand for guitars may be related to the number
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