STA3032 Quiz 5 - a random sample of 74 locations the errors...

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NAME (in CAPITALS): UFID Section: 7370 / 7393 UNIVERSITY OF FLORIDA DEPARTMENT OF STATISTICS STA3032 QUIZ 5 Spring 2011 Problem 4 on page 335 (Section 5.1) [MODIFIED] Interpolation methods are used to estimate heights ABOVE SEA LEVEL FOR LOCATIONS WHERE DIRECT MEASUREMENTS ARE UNAVAILABLE. In the article “Transformation of Ellipsoid Heights to local leveling heights” (M. Yamalak and O. Baykal, Journal of Surveying Engineering, 2001: 90 – 103), a second-order polynomial method of interpolation for estimating heights from GPS measurements is evaluated. In
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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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