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James and his sister, Alice, each deliver 30 papers on their evening paper rounds and each are paid the same amount. one evening, Alison claims this system of equal payment to be unfair as her round takes on average longer than that of her brother james. To test her claim their father , unknown to them, records their delivery times for 12 consecutive days. One of Alison's times had to be discounted as the front tire of her bicycle was punctured. The recorded times, in minutes, were shown below
Delivery times ( minutes)
James 45 30 39 32 34 43 38 35 43 39 32 34 Alice 49 42 39 45 38 49 43 36 33 41 36
Assuming each child's delivery times are normally distributed with the same known standard deviation of 5 minutes, test whether Alison's claim is justified, using a 5% level of significance.
suppose you fit the first order multiple regression model y b0 b1x1 b2x2 eto n 25 data points and obtain the
Evaluate the mean wait time and throughput rate
Determine the probability that the project will be completed in 70 days or less.
An unprepared student takes a 5-question true and false quiz and guesses every answer. Find the probability that the student will pass the quiz if at least 4 correct answers is the passing grade
If four students are to be randomly selected from this group, find the probability that exactly two undergraduates will be among the four chosen.
an experimenter suspects that a certain die is loaded that is the chances that the die lands on different faces are not
The industry standard suggests that 10% of new vehicles require warranty service within the first year. Jones Nissan in Sumter, South California, sold 12 Nissans yesterday. What is the probability that none of these vehicles require warranty servic..
an election ballot asks voters to select 6 city commissioners from a group of 18 canidates. in how many ways can this
1. the probability distribution of y the number of imperfections per 10 meters of a synthetic fabric in continuous
Discuss the issue of statistical power in non-parametric tests (as compared to their parametric counterparts). Which type tends to be more powerful? Why?
i have been quoted 55 by another site can you beat that
The following sample data were obtained from three populations that did not follow a normal distribution. Compute the value of the test stastic. What is your decision on the null hypothesis?
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