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How to do the problem if a researcher conducted a study of the access speed of 30 hard drives and concluded that his maximum error of estimate was 30. if he were to conduct a second study to reduce the maximum error of estimate to 6, about how many hard drives.
If you draw one ball from the urn what is the probability that it is blue or white?
Find the margin of error for the estimator in this survey for a 95% level of confidence . In part c, what does the 95% level of confidence imply in relation to the margin of error?
There are four auto body shops in a community and all claim to promptly serve customers. To check if there is any difference in service customers are randomly selected from each repair shop and their waiting times in days are recorded.
Suppose a product must go through a sequential assembly line made up of ?ve operations. The time it takes to complete each operation is normally distributed with a mean of 180 seconds and standard deviation of 5 seconds.
What are the pros and cons of selecting an established theoretical or conceptual model or framework? What are the pros and cons of creating/developing your own?
Claims involving automobiles are selected at random. What is the probability that six or more claims (x greater than or equal to 6) will be made by males under 25?
What is the minimum sample size needed in order for you to be confident that your estimate is within 5 of ? Use the value for the population standard deviation of scores on this subsection.
A random sample of 49 employees took a computer literacy test. The sample resulted in a mean score of 75 with a standard deviation of 21. Develop an approximate 95% confidence interval for the population mean of the 600 employees.
Perform the trend analysis of Pf with incrementally increasing number of the simulation cycles, and calculate the statistical uncertainty in the estimate expressed as the coefficient of variation.
Determine the dimensions of resulting exchanger?
What is the domain of a quadratic function? Can you give an example please.
Draw the histogram for these data using an initial class boundary of , an ending class boundary of , and classes of equal width.
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