Question: Finding x and E : A90%confidence interval for a population mean is given as27.0 < <36.6. Round your answers to 1 decimal place. (a) Calculate

FindingxandE:A90%confidence interval for a population mean is given as27.0<<36.6.Round your answers to 1 decimal place.(a) Calculate the sample mean.

x=

(b) Calculate the margin of error.

E=

FindingpandE:A95%confidence interval for a population proportion is given as0.448<p<0.670.Round your answers to 3 decimal places.(a) Calculate the sample proportion.

p=

(b) Calculate the margin of error.

E=

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