In a group of 100 children, the weight of a child is 15 kg. The standard error is 1.5 kg. Which one of the following is TRUE -
Here the examiner himself has given us the value of standard error = 1.5
So, we can directly apply sample data to the population.
95% of data will be covered by 2 standard error = 15 ± 2 SE = 12 ± 3 = 12 to 18
95% of all children weigh between 12 and 18 kg
95% of all children weigh between 13.5 and 16.5 kg
99% of all children weigh between 12 and 18 kg
99% of all children weigh between 13.5 and 16.5kg