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Construct a cross tabulation to examine the relationships between the two nominal/ordinal level variables. Assume that you selected a random sample of two hundreds cases and collected data on these cases. Calculate Chi Square ans as appropriate, Lambda, gamma and Cramer's V. Briefly state conclusion about hypothesis relationship.Hypothesis 1
Robbery arrest Convictions
44 3
50 6
38 8
96 12
42 14
42 18
47 22
40 22
39 28
46 32
50 40
Mean=49.2 Mean=18.2
standard deviation=16.95542422 12.09269752
Median-45 Median=16
Mode=50 Mode=N/A
Observation=10 Observation=10
Suppose we have run a regression on 48 months of data and the regression equation is Y = 50000 + 1000*x (where x is the month number).
Assume that a random variable, x, is distributed according to a normal distribution with mean 12 and standard deviation 2. Find the z-value if:
In some ways, ANOVA is like what communications engineers refer to as "signal-to-noise ratio". What could I possibly mean by that statement?
A group of teenagers were monitored closely over the period of several weeks to measure how frequently they watched violent television programs.
A number of years ago, there was a popular television game show called Let's Make a Deal. The host Monty Hall, would randomly select contestants from the audience and, as the title suggests
Explain how one extreme score influences mean and standard deviation.
Each egg was also measured for volume using a water displacement method. We wanted to know if the two methods agreed or not
The measure of forecast accuracy that is not influenced by the measurement scale of the time series data is:
Charmers' Candy Store sells wrapped hard candies in the following flavors: strawberry, blueberry, lemon, lime, and orange. They advertise that there are equal proportions of each flavor in every size of their candy boxes.
What is an estimate of the proportion defective for the piston manufacturing process when it is control?
Assume men's weights are normally distributed w/ a mean of 172 lb. and a s.d. of 29lb.
A company is creating 5 new divisions and 8 managers are eligible to be appointed head of a division. With 8 managers trying for 5 jobs, how could the five new heads be arranged?
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