Identify the errors involved in each scenario

II. Identify the errors involved in each scenario showing below 1. A university-sponsored mail survey of the general public in Las Vegas used telephone directories to sample households. But, because more than 60% of Las Vegas households are not listed in directories, most members of the general public did not have a chance of being selected for participation in the survey. 2. A large restaurant chain surveyed thousands of customers to make compensation decisions for individual franchise managers but only received 20-30 responses per franchise, far too few to get acceptable estimates of satisfaction for each franchise. 3. Interviewing respondents only between 8 am and 5 pm on features they would like to see in a new condo development. 4. Telling interviewer they can probe using any particular example they wish to make up