you want to determine the average (mean) number of robocalls received each day by adults in new…

you want to determine the average (mean) number of robocalls received each day by adults in new zealand.\n\nsample 1: a set of 546 new zealanders with phone numbers randomly selected from a list of all phone numbers in new zealand\n\nsample 2: the 546 adults in new zealand who respond to a survey published in a newspaper\n\nsample 3: a set of 546 new zealanders randomly selected from a list of all licensed car owners in new zealand\n\nsample 4: the first 546 people to visit a particular auckland grocery store one day\n\nwhich sample is most likely to be a representative sample? for each other sample explain why that sample is not likely to be a representative sample.

you want to determine the average (mean) number of robocalls received each day by adults in new zealand.\n\nsample 1: a set of 546 new zealanders with phone numbers randomly selected from a list of all phone numbers in new zealand\n\nsample 2: the 546 adults in new zealand who respond to a survey published in a newspaper\n\nsample 3: a set of 546 new zealanders randomly selected from a list of all licensed car owners in new zealand\n\nsample 4: the first 546 people to visit a particular auckland grocery store one day\n\nwhich sample is most likely to be a representative sample? for each other sample explain why that sample is not likely to be a representative sample.

Answer

Brief Explanations:

  • Sample 1: Randomly selected from all phone - numbers, likely to cover a diverse range of adults in New Zealand, so it's representative.
  • Sample 2: Only those who read the newspaper and respond are included. People who don't read that newspaper or don't respond are excluded, so it's not representative.
  • Sample 3: Only licensed car - owners are considered. Non - car owners are excluded, so it's not representative.
  • Sample 4: Only people visiting a particular Auckland grocery store are included. People from other areas and those who don't visit that store are excluded, so it's not representative.

Answer:

Sample 1 is most likely to be a representative sample. Sample 2 is not likely to be representative because it only includes those who read the newspaper and respond. Sample 3 is not likely to be representative because it only includes licensed car - owners. Sample 4 is not likely to be representative because it only includes people visiting a particular Auckland grocery store.