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The estimate of the population proportion is to be within plus or minus .05, with a 99 percent level of confidence. The best estimate of the population proportion is .19. How large a sample is required?
Estimating the combined mean values for the given data - find the mean for the combined sample
question use chebyshevs inequality to solve this problem. show your work. a machine used to fill cereal boxes dispenses
List 1 profession example for each probability type: empirical probability and theoretical (classical) probability. Explain clearly how these probabilities are used.
Find how large a sample must be drawn in order to be 90 percent confident that the sample mean will not differ from the population mean by more than 3.7 pounds.
Construct a 95 percent confidence interval for the population proportion of positive drug tests. Why may you assume that this is a normal distribution?
What are the advantages and disadvantages of regression models in comparison to using a computerized regression routine? Give examples.
What are three lessons learned relative ANOVA and Nonparametric tests? What concepts and analytic tools will you be able to use in your workplace ?
briefly restate your research area of interesta. identify at least 2 variables for which you would utilize a
1. a researcher examines the records of all registered voters in one city and finds that 43 are registered democrats.
If the opinion poll had announced the margin of error for 80% confidence rather than 95% confidence, this margin of error would be?
Solve by completing the square: Solve using the square root property:
womens heights are normally distributed with mean 63.7 in and standard deviation of 2.5 in. a social organization for
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