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Use the sample information x¯ = 34, σ = 4, n = 10 to calculate the...

Use the sample information x¯ = 34, σ = 4, n = 10 to calculate the following confidence intervals for μ assuming the sample is from a normal population.

(a) 90 percent confidence. (Round your answers to 4 decimal places.)
  
The 90% confidence interval is from to

(b) 95 percent confidence. (Round your answers to 4 decimal places.)
  
The 95% confidence interval is from to

(c) 99 percent confidence. (Round your answers to 4 decimal places.)
  
The 99% confidence interval is from to

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