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Question: An internet service provider wishes to estimate, to within one percentage point, the current proportion of all email that is spam, with 99.9% confidence. Last year the proportion that was spam was 71%. Estimate the minimum size sample required. The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
Epidemiologists are researching the relationship between two levels of tobacco exposure and a positive diagnosis of esophageal cancer. With SPSS, use the data set bd1.sav and the variables tob2 (dichotomized smoking status)
Find the equilibrium quantity and equilibrium price for the commodity whose supply and demand functions are given
Create an equation for which the appropriate test of the statistical hypothesis would require the use of a z-score. (For the population mean for the variable of interest, you may invent a hypothetical population mean for the sake of this equation...
based on the information compute the confidence interval using the t-distribution1. a tire manufacturer wishes to
What is the probability that: A single contestant finds all three "daily doubles", The returning champion gets all three of the "daily doubles" and Each of the players selects precisely one of the "daily doubles"?
In a recent sample of 84 used car sales costs, the sample mean was $6,425 with a standard deviation of $3,156.
Data are uniformly distributed between the values of 6 and 14. Determine the value of f (x). What are the mean and standard deviation of this distribution?
Interpret the slope and intercept of the regression model.- What does the value of say about how successful the model is?- Interpret in this context.
answers the following questions using the anova source table below. the table depicts a two-way anova in which gender
When sampling is from a normally distributed population, is there an advantage to taking a large sample? Explain.
does a follow-up reminder increase the renewal rate on a magazine subscription? a magazine sent out 760 subscription
before some time designated t0 an incompressible newtonian fluid is stationary in a horizontal chamber. at t0 a
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