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Elena L [17]
3 years ago
5

The national assessment of educational progress (naep) gave a test of basic arithmetic and the ability to apply it in everyday l

ife to a sample of 840 men 21 to 25 years of age. scores range from 0 to 500; for example, someone with a score of 325 can determine the price of a meal from a menu. the mean score for these 840 young men was x¯¯¯x¯ = 272. we want to estimate the mean score μμ in the population of all young men. consider the naep sample as an srs from a normal population with standard deviation σσ = 60.
Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0
<span>Ans : a) What is the standard deviation of this sampling distribution? Ď /âšn = 60/âš840 =2.0702 b) 1 standard deviation of the mean = (1) 2.07 = 2.07 c) 272+/- 1(2.07) (269.93, 274.07)</span>
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