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For the most recent year available, the mean annual cost to attend a private university in the United States was $20,082. Assume the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,500.
Ninety-five percent of all students at private universities pay less than what amount?
Use the interaction plot to argue that the new design is less sensitive to changes in environmental conditions (temperature and humidity). What limitations apply to this argument?
Determine the standard score for the value x=452 realative to its sample, where the sample mean is 500 and the standard deviation is 32.
Test the following claim about the difference between 2 populations proportions p1 and p2 for the given level of significance a and given sample statistic. Is it right-tailed, left-tailed, two-tailed. Assume the sample statistic are from independe..
Calculate the average hours of sleep per night for each sample. According to the 95 part of the 68-95-99.7 rule, 95% of all values of fall within __________ on either side of the unknown mean . What is the missing number?
A standard deviation of 4.0 days; and 12 employees were absent more than 10 days. Set up a 95% confidence interval estimate of the average number of days absent for the company's workers last year.
explain the parts of a decision tree.what are some benefits of using decision trees?in what ways can decision trees be
Misery loves company. It is time for the PE (professional engineer's exam). The results of the national test were normally distributed around the mean score of 70.
Probability that the flavor will be carried by Appleton or Beacon is 15/16. Determine the probability a flavor is carried by both Appleton and Beacon.
A production process manufactures items with weights that are normally distributed with mean 16 pounds and standard deviation 0.15 pound. An item is considered to be defective if its weight is less than 15.8 pounds or greater than 16.2 pounds.
Make a relative frequency histogram by using ten-point intervals to show the distribution of the scores.
a sample space s consists of five simple events with these probabilitiespe1 pe2 .15 pe3 .4 pe4 2pe5a find the
Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI.
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