Question

Question 1 Not yet answered Points out of 1.00 A new cable company is thinking of moving into the area, but they want to know how many of the local households still subscribe to cable television. As a new competitor to the region, they don't have access to customer records, so they want to sample households in the area. Below are several proposed sampling methods. Which of them are considered good sampling methods? Assume that all the households in the area exist on some reasonable form of a "block.) Flag question Select one or more: a. Go to the 30 closest households to the cable company's new office O b. Get a list of all the households in the area, and then randomly pick 50 of them c. Get a list of all the households in the area, organize them based on the five majon neighborhoods, and randomly pick ten households from each of the neighborhoods d. Get a list of all the households in the area, organize them based on the first letter in the house's address, and then pick 25 from the A-K list and 25 from the LZ list e. Get a list of all the blocks in the area, randomly pick ten blocks, and then go to all the households on those ten chosen blocks

Answer 1

A cable company wants to set-up their business in a new area. Prior to setting up the business they want to get an idea about how many customers are likely to subscribe. The households in the area are set-up in the form of a block. To obtain efficient results the sample should be such that it is a good representative of the population. The population here comprise of all the households in the area. As the households are divided into blocks, so it will be beneficial to firstly pick blocks in a random manner. Once a sample of blocks is obtained then the households in those blocks can be surveyed. This way our sample will be a better representative of the population because any chance of variation due to blocks will be eliminated. Thus, the appropriate option is e.