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Mathematics, 21.04.2020 20:51, rehooreh14
The U. S. Department of Agriculture claims that the mean cost of raising a child from birth to age 2 by husband-wife families in the United States is $13,120. A random sample of 500 children (age 2) has a mean cost of $12,925 with a standard deviation of $1745. At α=.10, is there enough evidence to reject the claim? (Adapted from U. S. Department of Agriculture Center for Nutrition Policy and Promotion).
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