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An experiment has a single factor with 5 groups and 7 observations in each group. An ANOVA of the data gives SSA=60 and SST=210.
An estimate of the common unknown variance is____?
Is this experiment collectively exhaustive? Explain.
Based on that information, develop a 99% confidence interval to provide an estimate of the mean expenditure per person for the entire population of visitors.
If a gambler rolls two dice and gets a sum of four, he wins $10; and if he gets a sum of three, he wins $25. The cost to play the game is $5. What is the expectation of this game?
Compute the median and store it in the R variable val. Repeat this process 5000 times. You can use the R command for(i in 1:5000) val[i]=median(rbinom(20,6, 0.9)).
Here is an arrangement of the race of 20 individuals, where 1 = Black, 2 = White, and 3 = Other: Use this data to answer the following questions:
(a) What are the factors and the treatments for this experiment? (b) Draw a picture explaining how you would randomize the 180 college students to treatment
1. What was the relationship among intellectual, political, economic, and social changes in the eighteenth century? What similarities and differences do you see between the French Revolution and contemporary revolutions? (at least 300 words to ans..
How does sample size affect the interpretation of survey results?- Distinguish between haphazard and quota sampling.
Do tobacco and alcohol spending appear to be related? What questions do you have about these data? What conclusions can you draw?
What other variables, aside from her mother's height, might be useful for improving your prediction? How could you use these variables in conjunction with the mother's height?
What size samples are needed for a statistical power of 70 percent in detecting a difference of 5 percent between the estimated percentages of recent CD buyers.
(a) Show that the game is progressively bounded. (b) Find the sets N and P. (c) Describe the winning strategy.
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