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Student ratings of teachers. A college newspaper interviews a psychologist about student ratings of the teaching of faculty members. The psychologist says, "The evidence indicates that the correlation between the research productivity and teaching rating of faculty members is close to zero." The paper reports this as "Professor McDaniel said that good researchers tend to be poor teachers, and vice versa." Explain why the paper's report is wrong. Write a statement in plain language (don't use the word "correlation") to explain the psychologist's meaning.
What is a normal distribution? What is a Z-Value? Can you provide and example of how they relate?
suppose we want to determine the binomial probability p of getting 5 heads in 15 flips of a 2-sided coin. using the
a study of 420039 cell phone users found that 131 of them developed cancer of the brain or nervous system. prior to
Explain how the proposed survey addresses your problem statement. Determine if your survey questions are appropriate for researching your business problem, and explain why they are.
Share your determination of probability in each of the situations. Explain how these two ways of assessing probability are different and how they can help make decisions.
What is the profitability index for the following set of cash flows if the relevant discount rate is 10 percent
1. (Continuation.) If g is a function from X into S, then t is called the Pettis integral of g if for all u ∈ St, ( u(g) dµ = u(t ). Show that the Bochner integral of g, when it exists, as defined in Problem 1, is also the Pettis integral.
Assume that you only receive 210 dollars if any number greater than or equal to ten tosses are required to obtain the first head. Show that your expected value for this modified game is finite and find its value.
according to a survey 90 of senior executives at major u.s corporations felt that the federal budget will not be
In a hypothesis test for the population variance, the alternate hypothesis is the population variance doesnot equal 17.0. The significance level to be used is 0.05 and the sample size to be taken is 25. The tablevalue(s) to use from the chi-square di..
Give an estimate of the difference in gender proportions that favored Commercial A. Also construct a large-sample 95% confidence interval for this difference.
Determine the least-squares regression line and interpret its slope. Estimate net income if the revenue figure is $10 million.
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