If the central-limit theorem holds, what proportion of the sample means should fall within 0.5 lb of

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If the central-limit theorem holds, what proportion of the sample means should fall within 0.5 lb of the population mean (112.0 oz)?


Obstetrics

Figure 6.4b (p. 172) plotted the sampling distribution of the mean from 200 samples of size 5 from the population of 1000 birth-weights given in Table 6.2. The mean of the 1000 birth-weights in Table 6.2 is 112.0 oz with standard deviation 20.6 oz.

Table 6.2: Sample of birth-weights (oz) obtained from 1000 consecutive deliveries at Boston City Hospital

 ID Numbers 0 1 2 3 10 11 12 13 14 15 16 17 18 19 116 124 119 100 127 103 140 000-019 82 107 132 100 92 76 129 138 128 11

Distribution
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