QUESTION 6 Three representatives from a company are asking for opinions about a

Question

QUESTION 6 Three representatives from a company are asking for opinions about a new product. Each representative gets responses regarding the quality of the product on a scale from 1 to 5, with 1 being terrible and 6 being fantastic, but each representative uses a different method of surveying people. ·A: Select the 100 people who purchased the product most recently B: Select 100 people randomly from a list of all owners of the product C: Randomly select 25 reviews of the product from Amazon and use the number of stars as the quality Which of the following statements is not true? A and B will likely produce very similar results because the sample sizes are the same. OC is likely going to have the largest sampling error because the sample size is the smallest C will likely provide a biased estimate of the average product rating. A and B are both better sampling methods than C B will resemble the population the closest

Explanation / Answer

ANS-1st option because sample size of both A and B are equal but this does not means that the results will be similar as the methods are quite different and also because

i] 2nd option is true because as the sampling size decreases chances of uncertainty increases

ii] 3rd option is true because the amazon product review sampling is not the most appropriate or accurate way for above sampling

iii] 4th option is true because c has a smaller sample size than A and B and hence as stated in reason i]( sampling error increases as sample size decrease )

iv] 5th option is true because B method is simple random sampling which is the most accurate and appropriate method for the above question

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