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At a certain college, there were 700 science majors, 100 engineering majors, and 500 business majors. If one student was selected at random, the probability that they are an engineering major is?
Evaluate a simple aggregate price index for 2004. Use 2000 as the base period - Estimating the simple aggregate price index.
If probability of getting sample mean x less than unreported sample mean is 0.025, determine value of the unreported sample mean?
Hanna Properties specializes in custom-home resales in the Equestrian Estates, an exclusive subdivision in Phoenix, Arizona. A random sample of nine custom homes currently listed for sale provided the following information on size and price.
Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. a) What is the probability that a randomly selected applicant scores between 425 and 575?
In a transportation problem with 5 supply points, 3 demand points, and total supply equaling total demand, the number of decision variables will be:
A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?
The mean starting salary for college graduates in the spring of 2000 was$31,280. Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of 3,330.
What is the probability that all 3 would iPods from best buy? Or at least one would have iPod from best buy?
Discuss how the null and alternative hypothesis for one-sample testing differs from two-sample testing; and explain how these two hypothesis' are the same, and provide a numerical example?
Read the data from the fictitious research study regarding diabetes and alcohol consumption, and analyze and interpret the results.
A computer diskette manufacturer is concerned that some diskettes have bad sectors that would cause a diskette to hold less information than it was intended to hold.
For the experiment above, let X denote the number of hearts that are drawn. For this random variable, find its expected value and standard deviation.
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