you plan to survey people to see what percent own their home and what percent rent. tell whether the following will give a random sample. justify ur answer.
a you interview people outside a pool supply sotre in the suburbs.
b you interview people in the street near an apartment complex.
c you mail a survey to every 20th person in the telephone book.
Tannu or Malna -- or whoever you are -- it's not necessary to change your name for each post.
Which location do YOU think will give you a random sample? Why? We'll be glad to comment on your answers.
well malna and tannu both is my name so i use the both name....i guess that doesn't matter....so plz help me with my hw
Can you see any bias caused by any of the choices? In terms of home ownership, which would be most random? Do you know the definiton of random? In terms of the population, all subjects have an equal chance of being included in the sample. What population concerns you?
I hope this helps. Thanks for asking.
i m not sure but i think it could be "b" is that correct
Most people in a street near an apartment complex are probably renters.
a) Interviewing people outside a pool supply store in the suburbs:
This method may not produce a random sample. The people you encounter outside a pool supply store in the suburbs may not represent the entire population accurately. They may have different demographics or housing choices than the general population. For example, they could be homeowners more likely to own a pool, which may skew the results towards a higher percentage of homeowners.
b) Interviewing people in the street near an apartment complex:
This method also may not give a random sample. People living near an apartment complex could be more likely to be renters than homeowners. This could lead to an overrepresentation of renters in the sample and not accurately reflect the general population.
c) Mailing a survey to every 20th person in the telephone book:
This method has the potential to generate a random sample. By using a systematic sampling approach and mailing surveys to every 20th person in the telephone book, you have a chance to include a diverse range of respondents. However, it is important to consider that the telephone book may have biases, such as excluding unlisted numbers or not accounting for individuals who may not have landlines. Therefore, this method may not be completely random, but it still has the potential to provide a reasonably representative sample.