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Suppose your instructor randomly surveyed his or her performance (i.e., students "graded" the teacher) over many years (assume an 'infinite' population). The frequency of ratings were as follows:
* A: 10* B: 6* C: 6* D: 3* F: 2
Please answer the following:
1. Did your instructor perform outstandingly? Why or why not?
2. Can you describe a chi-squared application in your profession?
The incarceration rate in one nation's prisons was 965 per 100,000 male residents, and 65 per 100,000 female residents.
What then is the probability that a shaft will be acceptable? Suppose that the diameter of the shaft is a random variable that is Normally distributed.
What are the singleton subsets of X and Y? are the empty set and the sample space the singleton subsets?
State the values of the coefficient of correlation and coefficient of determination correct to three decimal places
An analyst thinks that the economic conditions during the next year will either be Strong, Normal or Weak and she thinks that the Simpson Company's returns will have the following probability distribution.
Pierre has a utility function for total asset position of u(x)=ln(x), His assets currently consist of $50,000 in cash and a rare violin he inherited from a rich uncle which is valued at $100,000.
Is there evidence to suggest a difference in the mean waiting times at the four body shops?
Set up the following null and alternative hypotheses for both factors and their interaction. You should have three verbal statements, not symbolized statements.
Simulate 50 observations from a normal distribution with mean 0 and standard deviation 1. make a normal plot.
Below are the sample times in minutes. At the .05 significance level, can we conclude that there is a difference in their mean times?
The winning team's score in 13 high school basketball games was recorded. If the sample mean is 54.3 points and the sample standard deviation is 11.0 points, find the 98% confidence interval of the true mean.
Determine a 90% confidence interval for the mean weight of all university male first-year students.
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