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Q. Students in a management science class have just received their grades on the first test. The instructor has provided information about the first test grades in some previous classes as well as the final average for the same students. Some of these grades have been sampled and are as follows: Student 1st test grade Final average 1 98 93 2 77 78 3 88 84 4 80 73 5 96 84 6 61 64 7 66 64 8 95 95 9 69 76 a)Develop a regression mode that could be used to predict the final average in the course based on the first grade. b)Predict the final average of a student who made an 83 on the first test. c) Give the value of r and r squared for this model. Interpret the value of r squared in the context of this problem.
Find out sample standard deviation (s) of scores Gordon Golfer made on his last four rounds (determine to the nearest one tenth, or .1).
Perform a contingency analysis on the data to determine if there is any dependency between the number of level of education attained by the father and the size of his family.
For this same sample of n = 45, find out the width of confidence interval around population mean? Illustrate all work.
Standard deviations for first- and second-time and confidence interval
Are there differences in satisfaction with Intake process of clients who admit with mental health problems, substance abuse problems, or both.
Given sample data arranged in a frequency distribution table. Use Excel to calculate the sample mean and variance from this data set.
Dr. Richmond, a psychologist, is studying the daytime television viewing habits of college students.
An advisory group decided to investigate this claim, believing it was too large. A sample of 200 traffic accidents this year showed 74 persons were also involved in another accident within the last five years. Use the 0.01 significance level. Show..
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.
A coin was flipped 60 times and came up heads 36 times. Determine the critical value you would use to test whether proportion of heads is greater than 0.50 at 10% level of significance?
LPP using the graphical method. Solveout the following linear programming problem utilizing the corner point method.
If these answers were combined into single statistic, how could we explain sample space? Mention how many elements are in sample space?
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