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An investor estimates that there is a 1 in 10 chance that a stock purchase will lose 20% of its value, a 2 in 10 chance it will break even, a 4 in 10 chance it will gain 15% and 3 in 10 chance it will gain 30%. What is the expected return.
Please show work.
A survey of Ohio University students was conducted to determine if there was a particular Green that was desired by students to live on. A sample of students responses are reproduced below. Do students prefer a particular Green? Use critical value..
Use regression analysis to develop an estimated regression equation that could be used to predict the value score given the price of the car.
At the 5% level of significance, can we infer that branch A has a significantly higher proportion of satisfied customers than branch B?
Compute the value of the test statistic (to 2 decimals).
Compute the probability that debt for a randomly selected borrower with good credit is more than $18,000?
Can we conclude that car size is dependent on marital status? YES or NO (circle one)
Explain your findings (including the logic of comparing within-group to between-group population variance estimates, how each of these is figured, and the F distribution).
Make your calculation supposing a two-sided two-sample t-test with a type I error (alpha) of 0.056
Compare and contrast internal and external validity. Describe and give examples of research questions for which external validity is a primary concern.
A psychologist determined that the number of sessions required to obtain the trust of a new patient is 1, 2, and 3. Let x be the random variable indicating the number of sessions required to gain the patient's trust. The following probability fu..
Scores on an endurance test for cardiac patients are normally distributed with mean = 182 and standard deviation = 24.
A random sample of 10 shafts has an average diameter of 0.2545 inches. a) Construct a 99% confidence interval of the true mean
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