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Suppose feature movie lengths (in hours) were measured for all movies shown in 2017 in the U.S. The mean length of all feature length movies shown was 1.80 hours with a standard deviation of 0.15 hours. Suppose the length of a random sample of 20 movies was recorded from all movies released in 2017. The mean length of the feature length movies was found to be 1.72 hours with a standard deviation of 0.18 hours.
Suppose the process of taking random samples of size 20 is repeated 200 times and a histogram of the 200 sample means is created. The histogram would be a display of which of the following?
The results are SSBL = 2,312, SSTR =3,233, and SSE =12,386. Are all three sweeteners equally effective in reducing weight?
Why is cumulative relative frequency distribution so much more informative that just relative frequency distribution? Use examples to explain these differences.
Mercury in fish is a public health concern. People are sometimes advised against eating wild- caught fish because of high levels of mercury. The data in mercury.txt were collected as part of a survey of lakes in Maine. The 120 lakes in the study w..
Find the probability that a task from user 1 is executed for the first time during the 4th slot. Given that exactly 5 out of the first 10 slots were idle, find the probability that the 6th idle slot is 12.
According to the Centers for Disease Control and Prevention, about 36% of U.S. adults were obese in 2012. To simulate choosing 8 adults at random and seeing.
Are these data consistent with the hypothesis that the distributions of the number of visitors for the three days are identical?
As part of a long-term study of individuals 65 years of age or older, sociologists and physicians at the Wentworth Medical Center in upstate New York conducted a study to investigate the relationship between geographic location and depression.
Find the probability that the amount of total claims over a period of 100 days is at least $150,000. - find the probability that the company will net at least $10,000 for the 100-day period.
would you favor or oppose providing a path to citizenship for illegal immigrants in the U.S if they met certain requirement including a waiting period, paying fines and back taxes, passing criminal background checks and learning English? What is the ..
suppose x has density function fx for aleqxleqb and ycxd where cgt0. find the density function of
Let X equal the number of people selected at random that you must ask in order to find someone with the same birthday as yours. Give the values of the mean, variance, and standard deviation of X?
What are the mean and standard deviation of the busboy's daily earnings?
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