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1. Suppose you are calculating an Analysis of Variance for a completely randomized design. You are testing the hypotheses:
H0: µ1 = µ2 = µ3 = µ
H1: at least one µ1 not equal to µ
Suppose the resulting p-value = .001. How would you plot the raw data for this situation (you are expected to provide a sketch of the correct format of such a plot) and what would you expect the plot to show?
2. The probability density function for Y, a random variable, is given by
f(y) = 0.5 0<y<2
0 otherwise
2.1 What is the mean value of Y?
2.2 What is the variance of Y?
Deductible with a $580 premium. (A $Y deductible means the insurance company pays X - Y for X >= Y and X for X
Define or give an example of a hypothetical construct. Explain why operational definitions are needed to define and to measure constructs.
Use a graphical technique to compare the divorce rates in 1992, 2008 and 2012 broken down by age for Australian Male. Describe your graph.
If p is the probability of Event 1 and (1-p) is the probability of Event 2, based on the expected returns, for what values of p would you select A? B? C? Values in the table are payoffs.
Analysis of variance (ANOVA) is used to determine if there is a difference between the means of different populations. This is an example from a student in Prescott Arizona.
In as sample of 855 bartenders, 48% report hearing complaints from patrons about their jobs. If the maximum error of estimate for the proportion of bartenders hearing job complaints is 4.4 percentage points, what is the degree of confidence used?
The mean weight for a certain type of fish is known to be 28.0 ounces with a standard deviation of 2.5 ounces . A game warden catches and weighs 30 fish from a certqin pond to check if they are larger than the mean stated above.
A standard die has its faces painted different colors. Faces3,4,6 are red, faces 2 and 5 are black and face 1 is white.
First-order regression model was fit to data. Part of printout follows?
Remaining the same value. Estimate the probability at least two of the stocks increase in value. Estimate the probability at least two of the stocks increase in value.
In a random sample of 225 students at a university, 180 stated that they were nonsmokers. Based on this sample, compute a 95% confidence interval for the proportion of all students at the university who are nonsmokers.
How to determine the sample size for comparing mulltiple parameters like Height , weight, Blood pressure ,Blood parameters like blood glucose, total cholesterol, etc in two different populations?
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