Here are summary statistics for randomly selected weights of newborn girls: n= 168, x= 30.1 hg, s=7.7 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 28.6 hg

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Here are summary statistics for randomly selected weights of newborn girls: n = 168, x= 30.1 hg, s = 7.7 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence
interval 28.6 hg <µ< 32.6 hg with only 12 sample values, x= 30.6 hg, and s = 3.2 hg?
What is the confidence interval for the population mean u?
hg <u< hg (Round to one decimal place as needed.)
Are the results between the two confidence intervals very different?
O A. Yes, because one confidence interval does not contain the mean of the other confidence interval.
O B. No, because the confidence interval limits are similar.
O C. Yes, because the confidence interval limits are not similar.
O D. No, because each confidence interval contains the mean of the other confidence interval.
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n = 168, x= 30.1 hg, s = 7.7 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 28.6 hg <µ< 32.6 hg with only 12 sample values, x= 30.6 hg, and s = 3.2 hg? What is the confidence interval for the population mean u? hg <u< hg (Round to one decimal place as needed.) Are the results between the two confidence intervals very different? O A. Yes, because one confidence interval does not contain the mean of the other confidence interval. O B. No, because the confidence interval limits are similar. O C. Yes, because the confidence interval limits are not similar. O D. No, because each confidence interval contains the mean of the other confidence interval.
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