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The question is 2 Researchers reported a significant correlation between children's reading level and intelligence measured as an IQ score (r=.23). The same researches reported that the correlation between math ability and knowledge of social studies was not significant (r=.15). Explain these results as if you were writing to a person who has never had a course in statistics.
for an eight year period diane deposited 600 each quarter into an account paying 3.6 annual interest compounded
An urn contains three red balls numbered 1, 2, 3, four white balls numbered 4, 5, 6, 7, and three black balls numbered 8, 9, 10. A ball is drawn from the urn.
He also knows that the number has 7 digits and the last digit is not a zero. if jay were to dial all of the possible numbers and it takes him 21 seconds to try each one, how long will it take him to try each possibility?
A personnel manager has a computer-generated list of all employees that indicates that 70 percent are full-time employees, 20 percent are part-time employees, and 10 percent are furloughed or laid-off employees.
if n7 and ? .35 what is the probability of the following?a. x6b. x ?5c. x less than 4d. x is greater than
Show that the quantity (Njj - Ejj)2 has the same value for each of the four cells of the table.
Let X1, ... , Xn be i.i.d. r.v.'s with (?nite) unknown mean m and (?nite) known variance s 2, and suppose that n is large.
These 6 measurements are thought to adequately characterize the raw material. Also provided is a designation Adequate or Poor that reflects the process engineer's opinion of the yield from that lot of materials.
At the 0.05 level, can we conclude that the average production employee will complete the test more quickly the second time he or she takes it?
Ten pilots performed tasks at a simulated altitude of 25,000 feet. Each pilot performed the tasks in a completely sober condition and, three days later.
Produce a frequency distribution for these data. Convert the frequency distribution into a probability distribution using the relative frequency assessment method.
Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0?
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