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Marketing firm specializes in assessments of local restaurants and have been asked to rate local restaurants. The restaurants are rated as good, fair, or poor. From the firm's rating system, 72% of the restaurants were rated good, 20% of the time rated poor, and the remainder were rated fair. Of those rated good, 80% made a profit in the 1st year, 65% of those rated fair made a profit in the 1st year and 45% of those rated poor made a profit in the 1st year.
a. What is the overall probability that a restaurant made a profit in the first year?
b. What is the likelihood that a randomly selected restaurant that made a profit in the first year that was rated poor by the marketing firm?
Use the Kolmogorov-Smirnov test to discover whether the distribution of location of accidents is uniformly distributed for the month of September
Suppose a wireless communication system consists of a transmitter and a receiver.If the transmitter emits a radio signal with transmission amplitude x, this signal is attenuated by the air and is received by the receiver together with noise,denote..
The Bunte Auto Repair Shop received a shipment of four carburetors. One is known to be defective. If two are selected at random and tested.
A company produces and sells four grades of industrial solvents - A, B, C, and D.The selling price per gallon of each grade of solventis $6.40, $5.00, $4.20, and $3.50 respectively.
Lotto, a lottery game conducted by the Ohio State Lottery Commission, consisted of selecting six numbers from the 42 numbers 1, 2, ...,41, 42.
Find the mean, range, variance, and standard deviation for each of the three variables shown in the list. Present your results in a table. Using your results from (a), compare the distributions for job growth percentage and Percentage of women empl..
suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less
in the test of a certain hypothesis the p-value corresponding to the test statistic is 0.0316. can the null hypothesis
Twitter users and news, Part I: A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard error for this estimate was 2.4%, and a normal distribution may be used to model the s..
A defective picture tube was discovered in the latest shipment. What is the probability that it came from Tyson Wholesale?
Find a 95% confidence interval for the difference in population mean cost per ticket. Does this confidence interval support your conclusion in part (a)? Why or why not?
"Radon: The Problem No One Wants to Face" is the title of an article appearing in Consumer Reports.
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