<prompt> If sample size is bigger in random sampling , which of the following is TRUE -It approaches maximum samplesReduces non sampling errorsIncreases the precision of the resultDecreases standard error  <response>: Ans. is d i.e., Decreased standard error Also Know: o Greater the standard detion a, greater will be the standard error SE, especially in small samples o SE can be minimized by reducing SD: By taking a large sample o SE is measure of variability of sample summaries: SE. is the SD of sample means Uses of standard error of mean SE. in large samples: i To work out limits of desired confidence within which population mean would lie. ii To determine if sample is drawn from a known population or not iii To find SE of difference between 2 means to know if difference is real and statistically significant iv To calculate sample size within desired confidence limits 