Question

A student measured the sulfite content (wt%) of a solid sample six times with the following results. The chemical supplier certifies the sulfite content of the sample to be 51.64%. Trial | Percent S03 (wt%) 48.17 49.36 49.38 51.82 48.95 51.27 2 4 6 (a) What is the calculated value of the t statistic, texp? Give your value to two significant figures (b) ls the mean of the student'sO results statistically significantly different from the supplier's value, at the 95% confidence level? Number Ves

Answer 1

Here we need to use the t- test for single mean

because the sample size is small and

the population standard deviation is unknown