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Two orchestra's are auditioning for a spot in the finals. Their performances were rated and received the following scores:
Orchestra 1: n1 = 31, x1= 78, s1 =10..........
Orchestra 2: n2 = 30, x2 = 72, S2 = 14.
What is the perfomance statistics, p value and is there sufficient evidence to justify the rejection of H0 at the significance level of 0.05?
The program office budgets $30,000 per program review at the contractor's site. Your concern for "end of year" spending drills is that you have budgeted enough for the reviews (i.e. you are only concerned if the actual costs are higher than the..
A friend did the (Correlation Analysis - Data Interpretation) for me and I cannot get a hold of him to get the missing output. Can you please redo it and I will increase the amount
The test statistic was calculated
The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. What percentage of samples of 4 fish will have sample means between 3.0 ..
The percentage of physicians who are women is 27.9%. In a survey of physicians employed by a large university health system, 45 of 120 randomly selected physicians were women. Is there sufficient evidence at the 0.05 level of significance to c..
What other factors besides price might be included in this equation and do you foresee any difficulty in obtaining these additional data or incorporating them in the regression analysis?
Provide an example of the use of multiple regression
Deceptive Statistics
Can the final study be generalized to the entire population of high-risk cardiac surgery - Calculate the 95% confidence interval for the mean age of the Aprotinin group.
Suppose that you wish to invest in two stocks which both have a current price of $1. The values of these two stocks in one month are described by two random variables, say, X 1 and X 2 . Suppose that the expected values and variances of X 1 and..
It is known that 35% of the members of a certain population suffer from one or more chronic diseases. What is the probability that in a sample of 200 subjects drawn at random from this population 80 or more will have at least one chronic disea..
The distribution of scores was approximately bell
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