Question
Construct the confidence interval for the population mean mu. cequals0.95, x overbar equals 4.8, sigmaequals0.4, and...
Construct the confidence interval for the population mean mu. cequals0.95, x overbar equals 4.8, sigmaequals0.4, and nequals57 A 95% confidence interval for mu is left parenthesis nothing comma nothing right parenthesis . (Round to two decimal places as needed.)
Homework Answers
Answer #1
95% confidence interval for 
is
- Z *
/ sqrt(n) <
< + Z *
/ sqrt(n)
4.8 - 1.96 * 0.4 / sqrt(57) < < 4.8 + 1.96 *
0.4 / sqrt(57)
4.70 < < 4.90
95% CI is ( 4.70 , 4.90 )
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