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 –
Correct Answer: 95% of all children weigh between 12 and 18 kg
Description: 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
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