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a) At a local car dealership the probability of a salesman making a car sale to a customer is 0.4. The probability that the customer has a trade in given that a sale was made is 0.6. The probability that a customer has a trade in given no sale is made is 0.25. What is the probability that a customer has a trade in?
b) What is the probability of a sale given that the customer has a trade in?
c) What is the probability that a customer has a trade in and a sale is made?
The Awake Coffee Company produces gourmet instant coffee. The company wants to be sure that the average fill of coffee containers is 12.0 ounces.
Create the indicated confidence interval for population mean using (a) t-distribution. (b) If you had incorrectly used normal distribution, which interval would be wider?
In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely..
Boston Globe article "bargains on the menu-and a Side of Jitters" reported concerns
The Quick Change Oil Company has a number of outlets in the Seattle area. The daily number of oil changes at outlet in past twenty days are:
an offspring of a grey cat is grey with probability 0.6 and white with probability 0.4. an offspring of a white cat is
When the level of confidence and the sample size remain the same, a confidence interval for a population mean µ will be wider, when the sample standard deviation s is small than when s is large.
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
astronomers estimate that as many as 100 billion stars in the milky way galaxy may be encircled by planets. let p
The diameters of peaches in a certain orchard are normally distributed with a mean of 3.85 inches and a standard deviation of 0.42 inches. Show all work.
question a dart hits a dartboard that is in the shape of a square with sides of 4m. there are four congruent circles
Can you test the significance of the relationship between physical activity level and systolic blood pressure, adjusting for age, and weight, given the ANOVA table above?
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