Calculation of standard error (sE) y theoretical value estimation of se of se O-E N s↑→SE↑ n→sE↓
N x = n s s x = ✓ theoretical value of SE ✓ estimation of SE Calculation of standard error (SE) s↑→SE↑ n↑→SE↓ linkage
冷 EXample52 One analyst chose randomly a sample (n=100)and measured their weights with a mean of 7 2kg and standard deviation of 15kg Question: What is the standard error?
❖ Example 5.2 One analyst chose randomly a sample (n=100) and measured their weights with a mean of 72kg and standard deviation of 15kg. Question: what is the standard error?
Solution S==S/√m=15/√100=1.5
Solution: / 15/ 100 1.5 X S = S n = =