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1. The director of a Masters of public administration program is preparing a brochure to promote the program. She would like to include in the brochure the average grade point average (GPA) of first year students in the program, but since time is pressing she decides to estimate this figure with a sample of ten students (GPAs are normally distributed). The GPAs are listed below. What is the best estimate of the average GPA for all first year students? With 95% confidence, can the director conclude that the average GPAs for first year students is a B or better (3.0 on a 4.0 scale)?
GPAs: 2.8 3.6 3.4 2.5 2.2 2.6 4.0 3.1 2.7 3.5
#2. The William G. Harding School of Public Affairs would like to evaluate its affirmative action program for students. After extended discussion, the faulty decides that all students will take the state civil service exam, and the scores o this exam will be used as the criterion of success. Write a memo discussing the results shown in the accompany table below.
Regular Students Affirmative Action Students
Mean. 86.4 84.1
Standard deviation. 17.3 28.2
Sample Size 44. 19
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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