What is the standard deviation of the data
The test grades at a large school have an approximately normal distribution with a mean of 50. What is the standard deviation of the data so that 80% of the students are within 12 points (above or below) the mean?
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The recent average starting salary for new college graduates in computer information systems is $47,500. Assume salaries are normally distributed with a standard deviation of $4,500. What is the probability of a new graduate receiving a salary bet
The economist needs to know how large a sample should be taken so that a 90% confidence interval for their mean income with an error of $500 can be constructed. If the population standard deviation is known to be $8,000 what sample size would the
You are assigned to work on a project to develop a controller for a new satellite. To save money, your manager estimates you could reuse about 90% of the software from one of two similar satellites the company built in the past. One system has no kno
List 5 Ways the Byzantine empire impacted eastern europe?
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A young mother is encouraging her son to try another bite of a disliked food. The child is quietly whining, but when the mother spreads the food around to cool it, the child becomes hysterical. Why did the child become so upset? Identify the cognitiv
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