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Question: Suppose that you live in a city that has 125,000 households with telephones and a polling organization randomly selects 1000 of them to phone for a survey. What is the probability that your household will be selected?
a small stock brokerage firm wants to determine the average daily sales in dollars of stocks to their clients.a sample
estimation of the parameters for the normal and lognormal distributions.data set a 2 14 23 45 67 75 89 99 101 123 138
Can the binomial distribution be used to model the number of rare events that occur over a given time period?
The issue of how much should be spent to solve particular U.S. social problems is a complex matter, and people have diverse and conflicting ideas on these issues.
a gallup poll used telephone interviews to survey a sample of 1025 u.s. residents over the age of 18 regarding their
a sample of 8 observations is selected from a normal population for which the population standard deviation is known to
The statewide incidence of gonorrhea is 50 per 100,000 over a 3 month period. Is the number of gonorrhea cases in this county unusual for this time period?
Find the expected value and standard deviation for a binomial random variable with each of the following values of n and p:- n = 10, p = 1/2.
A company manufactures metal tubes for the aerospace industry. The company has two workers (Joe and Sam) who measure the final products to ensure that they are the correct length.
Four ball bearings were taken randomly from a production line and their diameters measured. The results were 1.0250, 1.0252, 1.0249 and 1.0249. Determine the average, sample variance and sample standard deviation.
The design should include two factors that you think influence the response, such as location, age, income, or education. Each factor should have three levels for testing in the model.
Assume that this percentage is based on a random sample of 800 French people. Give a 95% confidence interval for the population proportion in France that was against the European constitution.
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