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Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of size n = 3 to be 115 or more? Why or why not?
Some soccer games are not thrilling events to watch. Therefore, no soccer games are thrilling events to watch.
Find a 95% confidence interval for the true percent of movie goers in Flagstaff who have bought popcorn on their last visit.
a. Figure the means and standard deviations for the each group: governors and CEOs. b. Explain, to a person who has never had a course in statistics, what you have done.
Two points are chosen uniformly and independently on the perimeter of a circle of radius 1. This divides the perimeter into two pieces. Determine the expected value of the length of the shorter piece.
An occupational health study was carried out to evaluate the health status of workers. The response is forced expiratory volume (FEV), a measure of respiratory function
Why was the instructor suspicious? How would this scenario change if there were 1000 students in the class
Suppose you are told the mean and standard deviation for amounts that a sample of students have in their bank accounts.
Also, 72 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
the behavior of series of components play a huge role in scientific and engineering reliability problems. the
Critically illustrate out the purpose of developing frequency distribution? Describe the relationship between the relative frequency and the cumulative frequency.
A student wanted to study the ages of couples applying for marriage licenses in his county. He studied a sample of 94 marriage licenses and found that in 67.
Suppose you are asked to list, in order of preference, the three best movies you have seen this year. If you saw 10 movies during the year, in how many ways can the three best be ranked? Is this a combination.
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