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Statement of a problem № m1089

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The National Cable and Telecommunications Association recently reported that the mean number of HDTVs per household in the United States is 2.30 with a standard deviation of 1.474 sets. A sample of 100 homes in Boise, Idaho, revealed the following sample information. Number of HDTVs Number of Households 0 .............. 7 1 .............. 27 2 .............. 28 3 .............. 18 4 .............. 10 5 or more ............. 10 Total ............... 100




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