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Computing the mean, median, range and standard deviation for the given data.
Weekly salaries (in dollars) for a sample of registered nurses are listed. 774 446 1019 795 908 667 444 960
(a) Find the mean, the median, and the mode of the salaries. Which best describes a typical salary?
(b) Find the range, variance, and standard deviation of the data set. Interpret the results in the context of the real-life setting.
A manufacturing process makes items whose weights are normally distributed. It is known that 22.57% of all the items made weigh between 100 grams up to mean and 49.18% weigh from the mean up to 190 grams. Find out the standard deviation.
Based on this sample information find out what percent of variation in starting salaries is described by GPA, and find out the equation that would forecast salary from GPA. Give a scatter plot.
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?
Given that consumer changed te brands, what is the probability that consumer purchased fewer products than before?
How large a sample should be taken if the desired margin of error E is:
Assuming that students make their decisions independently, the number who accept has the B (1200, 0.75) distribution. If this number is less than 950, the college will admit students from its waiting list.
According to the patient's history and physical examination. What are the chances of herniation if the MRI is positive?
If the agency is risk neutral, use a decision tree to determine its best course of action.
A customer from Cavallaro's Fruit Stand picks a sample of 5 oranges at random from a crate containing 80 oranges, of which 6 are rotten. What is the probability that the sample contains 1 or more rotten oranges? (Round your answer to three decimal..
You are considering adding a new food product to your store for resale. Explain how many units of the new product should be purchased for resale.
To give 98% confidence interval for population mean μ, you would use critical value.
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