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Unformatted text preview: a random sample of 74 locations, the errors made by the method averaged 3.8 cm, with a standard deviation of 4.8 cm. a. [ NEW] What is the random variable (say X) in this problem? b. [NEW] What are given in the problem? c. Find a 95% confidence interval for the mean error made by this method. [This is part a in the text.] d. A surveyor claims that the mean error is between 3.2 and 4.4 cm. At what level of confidence can this statement be made? [This is part c in the text.]...
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- Spring '08