Textbook ExpertVerified Tutor
18 Nov 2021
Given information
Sample size, n = 26
Population mean, = 2.5 years
Population standard deviation, = 1.5 years
Step-by-step explanation
Step 1.
When a particular preference set of data is used it is always convenient to use normal distribution. It is usually bell shaped continuous probability distribution wherein all the values cluster towards the mean.
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