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Chapter 3: Q. 3.199 (page 147)

Heights of Basketball Players. In Section 3.2, we analyzed the heights of the starting five players on each of two men's college basketball teams. The heights, in inches, of the players on Team II are 67,72,76,76and 84. Regarding the five players as a population. solve the following problems.

a. Compute the population mean height, μ.

b. Compute the population standard deviation of the heights, σ.

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Most popular questions from this chapter

Consider the following sample of exam scores, arranged in increasing order.

The sample mean and sample standard deviation of these exam scores are 85and 16.1, respectively.
a. Compare the percentage of the observations that actually lie within two standard deviations to either side of the mean with that given by Chebyshev's rule withk=2
b. Repeat part (a) with k=3
c. Interpret your results from parts (a) and (b).

The Etruscans. Anthropologists are still trying to unravel the mystery of the origins of the Etruscan empire, a highly advanced Italic civilization formed around the eighth century B.C. in central Italy. Were they native to the Italian peninsula or, as many aspects of their civilization suggest, did they migrate from the East by land or sea? The maximum head breadth, in millimeters, of 70modern Italian male skulls and that of 84preserved Etruscan male skulls were analyzed to help researchers decide whether the Etruscans were native to Italy. The resulting data can be found on the WeissStats site. [SOURCE: N. Barnicot and D. Brothwell, "The Evaluation of Metrical Data in the Comparison of Ancient and Modern Bones." In Medical Biology and Etruscan Origins, G. Wolstenholme and C. O'Connor, cds., Littlc, Brown \& Co., 1959]

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For a particular population is the population mean a variable? What about a sample mean?
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