Many critics have been known to say, “They sure don’t make movies like they used to.” To assess Americans’ opinions of movies, a random sample of people was obtained and each was asked about the...

Many critics have been known to say, “They sure don’t make movies like they used to.” To assess Americans’ opinions of movies, a random sample of people was obtained and each was asked about the quality of movies. The data are given in the following table

Several years ago, most doctors believed that it was not necessary to take any dietary supplement. Now, because many Americans do not eat a healthy, balanced diet, many physicians recommend a once-a-day multivitamin. A random sample of people was obtained and asked whether they regularly take a multivitamin. The data are given in the following table