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Analyze the data shown below obtained at the start of a process. It was known at the time that the process was very unstable. Nevertheless, it was important to compare four variations A, B, C, D of process conditions. The variants A, B, c. D were employed in 32 consecutive iuns with results as follows:
(a) Plot the data. What kind of an experimental design is this?
(b) Make an ANOVA and a graphical ANOVA.
(c) Estimate the mean, with confidence interval, for the four possible process conditions.
(d) Plot the residuals in time order.
(e) Plot the eight averages of the sets of fours runs in time order and comment.
The power for a two-sided test of the null hypothesis p = 0.30 versus the alternative p = 0.40 is 0.82. What is the power versus the alternative p = 0.20
Construct a scatter plot of P-RFM and P-HELM. If drawing the plot by hand, use graph paper to ensure accuracy.
Mean and standard deviation are 584.6 and 34.28
each person in a random sample of 225 male teenagers and a random sample of 306 female teenagers was asked how many
A small private midwestern university has been accused of favoring male applicants in its admissions process.
Compute the Pearson correlation. Multiply each X value by 2 and compute the Pearson correlation for the modified scores.
Then suggest a follow-up study using this year's trainees as subjects that should clarify the importance of the variables identified by the first study
For a random sample of n = 50 one-child families, use the normal approximation to the binomial distribution to estimate the probability that there will be 20 or fewer families with one boy.
For commercial banks in each state, the U.S. Federal Deposit Insurance Corporation has determined the percentage of domestic assets held by multibank holding companies. Display the distribution as a less-than ogive.
Write an R program to simulate Rn, the proportion of white balls in the urn after n draws from the urn, for any integer n.
Education among young adults Choose a young adult (aged 25 to 29) at random. The probability is 0.13 that the person chosen did not complete high school.
Based only on this information, estimate the probability that you could ski at this resort after May 25 next year. What is the average closing day based on history?
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