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Leakage from underground gasoline tanks at service stations can damage the environment. It is estimated that 25% of these tanks leak. You examine 15 tanks chosen at random, independently of each other.
(a). What is the mean number of leaking tanks in such samples of 15?
(b). What is the probability that 10 or more of the tanks leak?
(c). Now you do a larger study, examining a random sample of 1000 tanks nationally. What is the probability that at least 275 of these tanks are leaking?
Graph this equation put at last five points for the equation. Graph each inequality. use the test point method.
the president of a company that manufactures air conditioners is considering switching his supplier of condensers.
suppose bolts are being manufactured using a process so that it is known that the length of the bolts follows a normal
Using the least squares coded method, determine the equation for the straight line going through the earnings. Project, using the equation for the average hourly earnings for the year 1990
Find a 98% confidence interval for the mean number of days required for successful completion of physical therapy for patients in the average group. Discuss the results.
Indicate the different ways an individual could forecast his or her weight 10 years from now. Do these methods change based upon whether the individual is 5, 14, 24, or 45 years old? If so why?
Using the confidence interval method, test the claim that the average age of consumers is at least 30 years ( α= 0.05). Test the same claim by using the test statistics method ( Z or T test).
If the market research gave a positive indication the price would be £35,000. If the market research gave a negative indication the price would be only £3,000.
How would you describe the function of a generalized linear regression model?
annual starting salaries for college graduates with degrees in business administration are generally expected to be
A manufacturer of flashlight batteries took a sample of 13 batteries from a day's production and used them continuously until they failed to work.
if a group of 4 were randomly selected from a group of 6 people 3 female3 males what is the probability the selected
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