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The turkeys found in a county in southern Ohio have an average weight of 15.6 pounds with a standard deviation of 4.0 lbs. Forty-five turkeys are randomly selected for a county fair. What is the probabilty that the average weight of these turkeys is more than 18 pounds?
Use the information above to calculate the Z score. Round your calculation to the 2nd decimal place:
Now use the calculate Z score along with the Z table to find the probability that the turkeys' average weight is greater than 18 pounds:
Use the probability to answer the following question: Would it be unusual to randomly choose 45 turkeys and find that their average weight is more than 18 pounds?
In an article appearing in Today's Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75
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a job only hires applicants who score 2 standard deviations or more above the mean on a skills test. if the mean is 77
Each egg was also measured for volume using a water displacement method. We wanted to know if the two methods agreed or not
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students enrolled in an introductory statistics course at a university were asked to take a survey that indicated
There are 8 members on the board of directors. If the board must form a committee of 6 members, how many different ways may the committee be selected from among the 8 board members?
Find the probability that Marys total worth reaches $3000 at some point. (We assume here that Mary has to quit playing if she goes bankrupt so this is a gamblers ruin problem.)
At a large university, 500 freshmen take their final exam for their marketing course. Scores are normally distributed with a mean 79 and standard deviation 7.
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