?Confidence Intervals. In Exercises 9–24, construct the confidence interval estimate of

Chapter 7, Problem 10

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Confidence Intervals. In Exercises 9–24, construct the confidence interval estimate of the mean.

Birth Weights of Boys Use these summary statistics for birth weights of 195 boys: \(\bar{x}\) = 32.7 hg, s = 6.6 hg (based on Data Set 4 “Births” in Appendix B). Use a 95% confidence level. Are the results very different from those found in Exercise 9? Does it appear that boys and girls have very different birth weights?

Text Transcription:

\bar{x}