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New battery's voltage may be acceptable or unacceptable. A certain flashlight requires 2 batteries, so batteries will be independently selected and tested until 2 working ones are found. Assume that 89 percent of all batteries have acceptable voltages. Let Y be the number of batteries that must be tested until finding two acceptable ones. What is the probability that Y=6?
Develop an appropriate forecast model for the given problem whereas the student population has remained constant during this period.
Use the information given to calculate the standard error of the mean. Mean systolic blood pressure for a sample of n=324 men is =123.5, and the standard deviation is s=9.
Choose any Statistic business problem and develop a problem statement which can be addressed with survey research. Prepare a 10-13 question survey to collect primary data regarding your selected problem statement.
An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11.
A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2-6 years of age. If 12 children are analyzed,
In the basic economic order quantity (EOQ) model, if monthly demand is a constant 430 units, the order quantity is 144 (12 dozen), and the firm operates during fifty five-day weeks a year, the cycle time will be approximately?
The GMAT scores of MBA students is assumed to be distributed normally with a mean of 530 and a standard deviation of 80. The GMAT scores of ten students are selected randomly.
In some places in the US, people are aware of the need for more care for older citizens, like Dr. Hope. In the election in one area, they put forward a referendum that would increase the county sales tax by one cent to pay for increased services f..
In order to test to see if there is any significant difference in the mean number of units produced per week by each of three production methods, the following data were collected:
A professor in the psychology department would like to determine whether there has been a significant change in grading practices over the years.
Prepare a mixed integer programming model for this problem.
A linear correlation coefficient very close to 0 implies that there is a linear correlation between the averages, but a correlation between the averages does not imply a correlation between individuals as the conclusion incorrectly suggest.
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