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Find the margin of error for the 95% confidence interval used to estimate the population proportion. In a survey of 7100 T.V. viewers, 40% said they watch the network news programs.
Identify the population and the sample: A survey of 787 small-business managers found that 72% are optimistic about the future of their company.
What variables will be included, and collection methods used to obtain data. What is the population, sampling method used and why it is the best. Plan for data: describe what you will do with data once you have it, include types of graphs used and..
Distribution and the method of moments estimators of the parameters are alpha(hat)= 5.23 and lambda(hat) = 21.3. Find an asymptotic 95% confidence interval for alpha.
The best estimator or appreciative of the population proportion is 0.45. How large must the sample be?
In determining automobile mileage ratings, it was found that the mpg in the city (x) for a certain model is normally distributed, with a mean of 24 mpg and a standard deviation of 1.0 mpg. Find the following:
The standard deviation of the sample is 5. find the best point estimate of the mean. find the 95% condidence interval of the mean score for all golfers.
Let B be the event that a randomly selected person from this sample is employed. What is P(A|B) (rounded to two decimal places)?
The standard deviation is thought to be $750. How many card holders should be sampled? Your company charges a set dollar amount for each account in the sample.
The following represents a project that should be scheduled using CPM. What is the probability of completing this project within 16 days?
Compare and contrast how the psychologist as a detective (a researcher) solves a problem to how a non-researcher solves a problem.
Determine the probability that computer will fail within 12 months?
Determine z score corresponding to minimum height requirement and determine z score corresponding to maximum height requirement.
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