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Artificial insemination is an important tool in agriculture, but freezing semen for later use can reduce its potency (ability to produce offspring). Here we are trying to understand the effect of freezing on the potency of chicken semen. Four semen mixtures are prepared, consisting of equal parts of either fresh or frozen Rhode Island Red semen, and either fresh or frozen White Leghorn semen. Sixteen batches of Rhode Island Red hens are assigned at random, four to each of the four treatments. Each batch of hens is inseminated with the appropriate mixture, and the response measured is the fraction of the hatching eggs that have white feathers and thus White Leghorn fathers (data from Tajima 1987). Analyze these data to determine how freezing affects potency of chicken semen.
Refer to Exercise 8.19. Would a 99% con?dence interval be wider or narrower than the one that you found in that exercise? Verify your results by computing the interval.
Let the following linear programming problem: Determine the optimal solution to this problem. Convert this problem standard LP form.
in a recent survey 45 indicated chocolate was their favorite flavor of ice cream. suppose we select a sample of
Explain briefly and in nontechnical language what "a significant difference (P
Determined that their mean waiting time was 15 minutes and that the standard deviation was 4 minutes. The 88% confidence interval for the population mean of waiting times is?
let a b and c be independent random variables uniformly distributed over 05 03 and 04 respectively. what is the
The bacteria Escherichia coli are commonly found in the human bladder. Suppose that 3000 of the bacteria are present at time t-0. Then t minutes later, the number of bacteria present can be approximated by:
administrators at a university will charge students 158 to attend a seminar. it costs 2160 to reserve a room
an engineer in charge of process improvement wants to study the relationship between the total number of hours of
Suppose you are given the following estimated regression equation: Debt Ratio = 4000 + .20 Cash Flow. If the t-stat for the slope estimate is 3.25, what can you conclude?
Compute the correlation coefficient and interpret it. Compute the mean square error MSE. Compute the standard error of the estimate. Compute the estimated standard deviation of b1.
Summarize the relationship between sample size and confidence level.
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