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In a random sample of 300 persons eating lunch at a department store cafeteria, only 102 had dessert. If we use 102/300 = 0.34 as an estimate of the corresponding true proportion, with what confidence can we assert that our error is less than 0.05?
a. What is the probability that A wins the championship in just five games? b. What is the probability that it takes just five games to obtain a champion? c. If a draw earns a half-point for each player, describe how you would perform a simulation t..
A mean of 2000 pounds and a variance of 2500 pounds. Let X be the mean of any sample of 100 ropes selected at random. find the expected value and the standard error of X.
The Grand Strand Family Medical Center is specifically set up to treat minor medical emergencies for visitors to the Myrtle Beach area. There are two facilities, one in the Little River Area and the other in Murrells Inlet.
Your customers have been divided into 3 groups. The first group represents 15% of customers, and these customers spent an average of $29.76 last year.
Wageweb.com exhibits salary data obtained from surveys. It provides compensation information on over 170 benchmark positions, including finance positions. It reports the salaries of chief finance officers for mid- sized firms. Suppose that a sampl..
The Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994) was conducted by the National Center for Health Statistics, Centers for Disease Control and Prevention.
People in a large population average 60 inches tall. You take a random sample and will be given a dollar for each person in your sample who is over 65 inches tall.
Explain the differences between longitudinal and cross sectional business research studies. Which two types of probability sampling are best suited for business research and statistical data analysis, and why?
a study is conducted comparing hdl cholesterol levels between men who exercise regularly and those who do not. the data
the sales of a grocery store had an average of 8000 per day. the store introduced several advertising campaigns in
Tommy's allowance is $5.50 per week. How much is that using the least number of dollars and dimes
What is the best first glance prediction you can give the customer about the value of his house given your 2 variable linear regression analysis?
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