Matched or Paired Samples · Exercise 11

Ten individuals went on a low–fat diet for 12 weeks to lower their cholesterol. The data are recorded in. Do you think that their cholesterol levels were significantly lowered?

$$\begin{array}{cc}\text{Starting cholesterol level}& \text{Ending cholesterol level}\\ \text{140}& \text{140}\\ \text{220}& \text{230}\\ \text{110}& \text{120}\\ \text{240}& \text{220}\\ \text{200}& \text{190}\\ \text{180}& \text{150}\\ \text{190}& \text{200}\\ \text{360}& \text{300}\\ \text{280}& \text{300}\\ \text{260}& \text{240}\end{array}$$

OpenStax, Introductory Business Statistics 2e · §10.6 Matched or Paired Samples · Exercise 11