ce interval and one sided-interval of the population mean using the sample: 15, 30, 45, 10, 20, 8, 6, 7, 21, 25, 10, 20, 20, 30, 40.

Question

construct the 95% two-sided confidence interval and one sided-interval of the population mean using the sample 15, 30, 45, 10, 20, 8, 6, 7, 21, 25, 10, 20, 20, 30, 40

Answer 1

?????????????????? "ce interval" ??????????

mite help if yu sort em...6, 7,8,10,10,15,20,20,20,21,25,30,30,40,45

15 numbers, sum=307, averaej=20.4666666666...

media=20, biggest=45, smallest=6, raenj=39

sum squares=1981.73333, varians=132.11555,

std deviashun=11.49415