Here are summary statistics for randomly selected weights of newborn girls: n=245, x=31.1 hg, s=7.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 29.5 hg <<33.1 hg with only 17 sample values, x= 31.3 hg, and s=3.5 hg? What is the confidence interval for the population mean μ? ng<

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**Confidence Interval for Newborn Girls' Weights**

Here are summary statistics for randomly selected weights of newborn girls:

- Sample size (n): 245
- Sample mean (x̄): 31.1 hg
- Sample standard deviation (s): 7.9 hg

**Task:**
Construct a confidence interval estimate of the mean using a 95% confidence level.

Additionally, compare these results to a previously calculated confidence interval: 
29.5 hg < μ < 33.1 hg, which was based on only 17 sample values with a mean (x̄) of 31.3 hg and a standard deviation (s) of 3.5 hg.

**Question:**
What is the confidence interval for the population mean μ?

- Fill in the blanks for the interval:    
  __ hg < μ < __ hg  
  _(Round to one decimal place as needed.)_
Transcribed Image Text:**Educational Website Content:** **Confidence Interval for Newborn Girls' Weights** Here are summary statistics for randomly selected weights of newborn girls: - Sample size (n): 245 - Sample mean (x̄): 31.1 hg - Sample standard deviation (s): 7.9 hg **Task:** Construct a confidence interval estimate of the mean using a 95% confidence level. Additionally, compare these results to a previously calculated confidence interval: 29.5 hg < μ < 33.1 hg, which was based on only 17 sample values with a mean (x̄) of 31.3 hg and a standard deviation (s) of 3.5 hg. **Question:** What is the confidence interval for the population mean μ? - Fill in the blanks for the interval: __ hg < μ < __ hg _(Round to one decimal place as needed.)_
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