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The state of California has a mean annual rainfall of 27.6 inches, whereas the state of New York has a mean annual rainfall of 48.7 inches. Assume the standard deviation for California is 6.3 inches and for New York is 5.6 inches. Find the probability that, for a sample of 40 years of rainfall for NewYork, the mean annual rainfall is at least 50 inches.
A researcher is asked to determine whether or not a productivity objective (in dollars) or better that $75,000 per employee is possible. A productivity test is done involving 20 employees. What conclusion would you reach? The sales results are as fol..
Students MUST use a minimum of at least five references for the city report, three of which cannot come from material presented in the class. Sources from Wikipedia, etc. are not acceptable references and should not be used.
Universal Burger is concerned about product waste, so they sampled their burger waste record from the past year with the following results: Number of Burgers Discarded During a Shift: 2, 16, 4, 12, 19, 29, 24, 7, 19, 22, 14, 8, 24, 31, 18, 20, 16, ..
The distribution of scores was approximately bell
Five hundred eleven (511) homes in a certain southern California community are randomly surveyed to determine if they meet minimal earthquake preparedness recommendations. One hundred seventy three (173) of the homes surveyed met the minimum recommen..
What is the probability that at least 10 pay cash - Davids gasoline station offers 4 cents off per gallon if a customer pays cash and does not use a credit card.
Find the mean, median, mode, variance and standard deviation for the following nine data values and find the four quartiles and the 20 th and 80 th percentiles for the above data.
4x5 contingency table was developed and computed to 15.42. At the 0.05% level, the critical value is21.026
There evidence that the mean price is higher at Whole Foods Market than at the Fairway supermarket and interpret the meaning of the p-value in (a)
Assuming that you sample without replacement, select all possible samples of n = 2 and construct the sampling distribution of the mean. Compare the mean of all the samples means and also compute the population mean. Are they equal? What is the proper..
an experiment is conducted in which 60 participants each fill out a personality test but not according to the way they
A customer service center has customers call with questions about the use of a product. The mean arrival rate of customer calls is 20 per hour and follows a Poisson distribution. The mean service rate (how long it takes the call center employee to an..
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