The population mean of the number of CD's owned by a Fanshawe students is 25.23 CDs...
The population mean of the number of CD's owned by a Fanshawe students is 25.23 CDs and the standard deviation of the population is 10.3 CDs. What is the probability that a sample of 45 students will own an average of less than 21 CDs?
a) .0035
b) .0030
c) .9965
d) .9970
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The population mean of the number of CD's owned by a Fanshawe
students is 25.23 CDs...
We know that the number of books owned by the population of Gonzaga University students follows...
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A
sample of size 45 will be drawn from a population with mean 10 and
standard deviation 5. Find the probability that x will be greater
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We know that the number of books owned by the population of Gonzaga University students follows a normal distribution and has a mean of 32 and a standard deviation of 3.8. Show all work for full credit! Find the probability that a single randomly selected student owns more than 34 books. Find the probability that a sample of size 40 is randomly selected with a mean that is larger than 34 books.
7. A group of university students are interested in comparing the average age of cars owned by students and the average age of cars owned by faculty. They randomly selected 25 cars that are own by students and 20 cars that are owned by faculty. The average age and standard deviation obtained from the students' cars are 6.78 years and 5.21 years, respectively. The sample of faculty cars produced a mean and a standard deviation of 5.86 years, and 2.72....
A
sample of size 45 will be drawn from a population with mean 10 and
standard deviation 5. Find the probability that x will be greater
than 11.
32) A sample of size 45 will be drawn from a population with mean 10 and standard deviation 5. Find the probability that x will be greater than 11. B) 0.9099 A) 0.0901 C) 0.0721 D) 0.1170
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