16.40 Consumer perceptions of food safety.

CASE 16.2 Case 16.2 (page 16-10) describes a study of the attitudes of people attending outdoor fairs about the safety of the food served at such locations. In the associated data file, you will find the responses of 303 people to several questions. The variables in this data set are (in order)

The variable “sfair” contains responses to the safety question described in Case 16.2. The variable “srest” contains responses to the same question asked about food served in restaurants. We suspect that restaurant food will appear safer than food served outdoors at a fair. Do the data give good evidence for this suspicion? (Give descriptive measures, a test statistic and its -value, and your conclusion.)