Question

To determine the effect of 100% nitrate on the growth of pea plants, several

specimens were planted and then watered with 100% nitrate every day. At

the end of two weeks, the plants were measured. Here are data

on seven of

them: 17.5 14.5 15.2 14.0 17.3 18.0 13.8

What assumption did you make about the population in which

sampled from, when calculating the confidence interval?

Answer 1

We made the asumption that Population is normally distributed to calculate the confidence interval because here sample size is less than 30 to apply central limit theorem