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1. Describe a 2 x 2 x 3 factorial design. How many independent variables are involved, and how many levels are there of each variable? How many experimental conditions are in a 2 x 2 x 3 factorial design?
2. Distinguish between randomized groups, matched-subjects, and repeated measures factorial designs.
A recent article in the Denver Post indicated that the mean selling price of the homes in the area is more than $220,000. Can we conclude that the mean selling price in the Denver area is more than $220,000? Use the .01 significance level. What is..
rollover rates for suvs is a major transportation safety issue. in order to capture differences among true rollover
Four students each received a raw score of 22 on a different test. Compute the z-score for the raw score value of 22 for each student, given information about the distributions of X values for each test.
State your hypothesis, draw your curves, label your critical values and your test statistic, state your decision to accept or reject and write your conclusion in the language of the problem. Use a=0.05.
create a game of chance using a coin dice or a standard deck of cards. choose how to play the game and determine at
Suppose that a mortality table used to calculate reserves is altered. Explain how the reserves will be affected, for whole life policies with a constant death benefit and level premiums.
Using a 2-month weighted moving average, with weights of 2 for the most recent month and 1 for the previous month develop forecasts sales for March to June inclusive.
Estimate demand for the next four weeks using a four-week moving average as well as simple exponential smoothing with a = .01. Evaluate the MAD, MAPE, MSE, bias and TS in each case. Which of the two methods do you prefer? Why?
The procedure accumulate-n is similar to accumulate except that it takes as its third argument a sequence of sequences, which are all assumed to have the same number of elements.
Assume that the order of the salespeople on the list is relevant.
The population variances are 4.6 and 5.0 respectively. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Fully explain your answer.
A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2823 occupants not wearing seat belts, 31 were killed. Among 7765 occupants wearing seat belts, 16 were killed.
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