Here are summary statistics for randomly selected weights of newborn girls: nequals226, x overbarequals29.8 hg, sequals7.7 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 27.2 hgless thanmuless than31.4 hg with only 17 sample values, x overbarequals29.3 hg, and sequals3.3 hg?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Find the solution to this system 2,1 1,-2 1,2 -1,2

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