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Question: As software for microcomputers becomes more and more sophisticated, the element of time becomes more crucial. Consequently, manufacturers of software packages need to work on reducing the time required for running application programs. Speed of execution also depends on the computer used. A two-way ANOVA is suggested for testing whether differences exist among three software packages, and among four microcomputers made by NEC, Toshiba, Kaypro, and Apple, with respect to the average time for performing a certain analysis. The results include SS(software) = 77,645, SS(computer) = 54,521, SS(interaction) = 88,699, and SSE = 434,557. The analysis used a sample of 60 runs of each software package-computer combination. Complete an ANOVA table for this analysis, carry out the tests, and state your conclusions.
A uniform random variable has a PDF given by fx(x)=u(x)-u(x-1) . - Find the mean and variance of X.- Find the conditional mean and the conditional variance.
a foreman for an injection-molding firm admits that on 11 of his shifts he forgets to shut off the injection machine on
Response being average of morning and evening speeds. At each interchange, three settings of traffic lights are allotted at random to three Tuesdays. Examine the results using more traditional split-plot method.
Using the results, describe the effect of an outlier or extreme value on the confidence interval.
Assume also that the sample standard deviation was $0.5 million and compute a 95% confidence interval for the average earning per trade for all trades made.
What is the probability that all four valves will be defect-free?- What is the probability that the plant will select all three defectives?
If the player enters one lottery each week, what is the expected number of weeks until a player matches all 6 numbers in the state's sample?
the following data represent the number of children in a sample of 10 families from chicago 4 2 1 1 5 3 0 1 0 and 2.
What do high and low values of kurtosis imply for the shape of a frequency distribution? Draw a diagram to illustrate your answer.
The publisher of a popular financial periodical has decided to undertake a campaign in an effort to attract new subscribers.
A single-elimination tournament with four players is to be held. In Game 1, the players seeded (rated) first and fourth play. In Game 2, the players seeded second and third play. In Game 3, the winners of Games 1 and 2 play, with the winner of Gam..
a sample of 144 students is taken from a population of 2000 high school students to estimate the proportion of students
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