Question

Go to Settings lo M E 644 AM 12/2/2019 $ POD POUP End Home Delete Insert 1 F12 Pause Break F10 Pr Ser Sys RC F11 ECO Num 1. A random sample of size 16 valves from a normal population showed a mean of 53 and a sum of squares of deviation from the mean equals to 150. Can this sample be regarded as taken from the population having 56 as mean? Obtain 95% confidence limits of the mean of population.

Answer 1

95 t. confidence Interual fes the population mean is given by (8-19., 8 + 1965.) Hese = 53 , n = 16 , o=13 (53-1:24 min 55 +144 ure (-20.5, 1265) 56€ (- 20.5, 1265) Yes, this sample be regasced as 2 taken som population.