19 A normal quartile plot is given below for the lifetime in

19) A normal quartile plot is given below for the lifetime (in hours) of a sample of batteries of a particular brand. Use the plot to assess the normality of the lifetimes of these Batteries. Explain your reasoning.

Solution

In the given normal quantile plot, the point shows curvy nature (it means, the normal score are not in linear pattern), therefore, the sample data provide no evidence to state that the lifetimes of the batteries will follow a Normal distribution.