Chapter 8, Problem 23SE

Dreaming (Example 7) A 2003 study of dreaming published in the journal Perceptual and Motor Skills found that out of a random sample of 113 people, 92 reported dreaming in color. However, the proportion of people who reported dreaming in color that was established in the 1940s was $0.29$ (Schwitzgebel 2003). Check to see whether the conditions for using a one-proportion $z\text{-test}$ are met assuming the researcher wanted to see whether the proportion dreaming in color had changed since the 1940s.