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Question: Two researchers independently select simple random samples from a population of size N, with sample sizes m and n (for each researcher, the sampling is done without replacement, with all samples of the prescribed size equally likely). Find the expected size of the overlap of the two samples.
Discuss the ways that Chistianity, Islam, and Buddhism spread in Eastern and Western Europe, Africa and the Middle East
a population is normally distributed with mean 50 and standard deviation 10 and sample mean 50. what are the mean and
Refer to Exercise 7.80 (page 470), where we compared trustworthy ratings for ads from two different publications. Suppose that you are planning a similar study using two different publications that are not expected to show the differences seen whe..
21st Century Insurance Company claims that telephone calls for policy holder information are answered in at most 3 minutes. A random survey of 36 phone calls results in the mean 3.3311 and standard deviation 2.1788.
Study About Doctors and Other Professionals
create the confidence interval for sigma2 using the data from problem 1 with 005. the endpoints of the confidence
The weight of an almond is normally distributed with mean 0.05 ounce and standard deviation of 0.015 ounce. Find the probability that a package of 100 almonds will weigh between 4.3 and 5.3 ounces.
Run a regression analysis on the data above using Excel, as done in class. Include a copy of your printout. Does the regression model seem to fit the data very well? What evidence do you have for this? Explain. What could be done that might improve..
What is the probability that a cereal would be high calorie given that its high fiber?(6)what is the probability that a cereal would be high calorie given that its low fiber?
If 1285 customers participated in the survey, what is the margin of error and what is the interval estimate of the population proportion of customers using the Internet to buy gifts? Use 95% confidence
Considering all of the day to day activities you are engaged in at work and in your personal lives, write a 200 (or more) word paper that describes at least three (3) different statistical usages that you see regularly.
Construct the 3 × 2 table of counts for these data and include the marginal totals.- Find the percents of claims that were not allowed in each of the three strata.
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