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A fan cost index is calculated for each of the professional sports to give an idea of what it costs a family to go to a game. A football fan wanted to know what it would cost a typical family to go to an NFL game. She sampled 20 teams from 2012 NFL season and found the average fan cost index to be $440 with a standard deviation of $83. a. What is our population mean? What is our best estimate?
Illustrate is the range of values for a coefficient of correlation. Illustrate degree of relationship do values of the correlation coefficient (r)with magnitudes close to 1.00 indicate.
Create a hypothesis and write out the eight steps used to apply a statistical test to your hypothesis.
briefly restate your research area of interesta. identify at least 2 variables for which you would utilize a
the time to failure of a battery in hours of a personal handheld music device follows an exponential distribution. the
Credit card companies use a scoring model to determine the credit worthiness of a prospective card holder. Factors such as income, employment, home ownership, and credit history determine one's score.
Use factoring, the quadratic formula, or identities to solve the following equations:
polychlorinated biphenyls pcbs are used in the manufacture of electrical transformers and pose a great danger to health
Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30.
a student must answer 43 or more questions correctly to obtain a grade of a. what percentage of the students who have
Solve manually and then by mega stat. Indicate your decision rule, your hypotheses and your statistical and management conclusions."
Give an example of how to use a t-test to analyze the data from the Table of Variables and list the grouping variable and continuous variable that you would include in the analysis
A truck without thelp from the truck driver (2hours per truck with the truck drivers help) Assuming M/M1:FCFS/8/8 model: What is the probability of 0,1 or 2 trucks in need of repair at any one time?
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