Here are summary statistics for randomly selected weights of newborn girls: n = 213, x = 31.3 hg, s= 6.3 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 30.2 hg < µ< 32.0 hg with only 19 sample values, x= 31.1 hg, and s= 1.8 hg? What is the confidence interval for the population mean u? Ohg

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2021SP Elementary Statistical Methods (MATH-1342-32402)
Adrian Gonzalez
04/11/21 10:09 PM
Here are summary statistics for randomly selected weights of newborn girls: n = 213, x = 31.3 hg, s = 6.3 hg. Construct a confidence interval estimate of the mean.
Use a 95% confidence level. Are these results very different from the confidence interval 30.2 hg < u< 32.0 hg with only 19 sample values, x = 31.1 hg, and s = 1.8
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. No, because the confidence interval limits are similar.
O B. Yes, because the confidence interval limits are not similar.
C. No, because each confidence interval contains the mean of the other confidence interval.
O D. Yes, because one confidence interval does not contain the mean of the other confidence interval.
Click to select your answer(s).
Transcribed Image Text:10:09 5G 4 AA A mathxl.com 2021SP Elementary Statistical Methods (MATH-1342-32402) Adrian Gonzalez 04/11/21 10:09 PM Here are summary statistics for randomly selected weights of newborn girls: n = 213, x = 31.3 hg, s = 6.3 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 30.2 hg < u< 32.0 hg with only 19 sample values, x = 31.1 hg, and s = 1.8 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. No, because the confidence interval limits are similar. O B. Yes, because the confidence interval limits are not similar. C. No, because each confidence interval contains the mean of the other confidence interval. O D. Yes, because one confidence interval does not contain the mean of the other confidence interval. Click to select your answer(s).
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