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The following data are daily price quotations of two stocks:
Stock A: 12.50, 12.75, 12.50, 13.00, 13.25, 13.00, 13.50, 14.25, 14.00Stock B: 35.25, 36.00, 37.25, 37.25, 36.50, 36.50, 36.00, 36.00, 36.25
Is there a correlation between the two stocks? Explain.
The goal of a study by Klinger et al. was to determine how symptom recognition and perception influence clinical presentation as a function of race. They characterized symptoms and care-seeking behavior in African-American patients with chest pain..
Don Levine Corporation is considering adding an additional plant to its three existing facilities in Decatur, Minneapolis, and Carbondale. Both St. Louis and East St.Louis are being considered.
Conduct a statistical test to determine if the sample is representative of the population.
Analyze the Regression and draw the scatter plot for results of the Hsp90 affinity and Her-2 degradation studies.
The mean SAT verbal score is 478, with a standard deviation of 98. Use the Empirical Rule to determine what percent of the scores lie between 380 and 478. (Assume the data set has a bell-shaped distribution)
Find a 98% confidence interval for the true mean. Assume that the account balances are normally distributed.
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.
Compute the Kappa statistic and its standard error reading reproducibility of the diagnosis of dyspnea in this clinic.
What is the null hypothesis? What is your decision if a = 0.01?
Converting data to indexes makes it easier to compare the trend in a series composed of exceptionally large numbers.
An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range.
The five year surival rate for Caucasians for all forms increased from 37% in 1960 to 58% now. Express this change in two ways (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent.
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