The following data are from a simple random sample. 59,12,7,12,15 a. What is the point estimate of the population mean? b. What is the point estimate of the population standard deviation (to 1 decimal)? E ( 7 : - we ) 2 5 + 1 + 4 + 9 - 4+25 6 5 : 6 8 6 5 : 3. 4 give sample Population standard dedeviction 5 = 3 .4diven sample 5 , 9, 12, 7 , 12, 15 mean( ul) - Sum ofthe Samples . Ex. no of sample given no f samples n= 6 5+ 9+ 1 2 + 7 + 12 + 15 we 6 ull = 6 w = 10 So the give sample population mean= 10 Pupuletin standard deviation J = E ( x ; - wj n ( x ; - w ) ? 5 5-10 =-5 ( - 5 ) = 25 9 9- 10 2-1 ( - 11 2 = 1 12 12- 10 =2 (21 = 4 7 7 -10 - - 3 ( - 3 ) = 9 12 12- 10 = 2 ( 2 ) = 4 15 15- 10 = 5 (5) = 25