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The distribution of heights of adult American women is approximately normal with a mean of 64 inches and standard deviation of 2 inches. What percent of women is taller than 68 inches?
the computer-science aptitude score x and the achievement score y measured by a comprehensive final were measured for
alice has a ten-day vacation from school and she wants to spend some of it reading. beside her favorite comfy chair
Express the 68.26-95.44-99.74 Property in terms of a normal distribution with the following parameters: 1. mean µ = 25 and standard deviation s = 3
Tourism is one consideration for CoffeeTime's future, A survey of 1,233 visitors to mumbai last year revealed that 110 visited a small cafe during their visit.
What is the approximate probability that the mean score X of these students is 23 or higher? D) Which of your two normal probability calculations in (a) and (c) is more accurate? Why?
Use the Histogram option in Data Analysis to check the assumption of normality. Comment on the findings.
Find the mean score, X , of the data in the frequency distribution above and find the standard deviation of the scores in the frequency distribution above.
Assume that the population standard deviation is 0.4. If a random sample of 200 women is selected, what is the probability that the sample mean will fall between 1.52 and 1.62?
Construct appropriate control charts and comment on the performance level. What are the chances of meeting a goal of no more than a 10-minute delay?
Volunteers at a teenage distress center have been assigned based on their skills and expertise. It's assumed that 40% are drug related, 25% sex related, 25% stress, and 10% education. For the study sample of 120 calls per month were categoruzed as fo..
a new phone answering system installed by the ohio power company is capable of handling 5 calls every ten minutes.
in a class with 18 boys and 12 girls boys have probability 13 of knowing the answer and girls have probability 12 of
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