A survey of 100 registered pharmacists attending a 4-day pharmacy convention in

Question

A survey of 100 registered pharmacists attending a 4-day pharmacy convention in Las Vegas revealed that their mean age is 35 years old. The population consists of (a) all registered pharmacists attending a 4-day pharmacy convention in Las Vegas (b) all registered pharmacists in Las Vegas (c) 100 registered pharmacists attending a 4-day pharmacy convention in Las Vegas (d) 100 registered pharmacists in Las Vegas The value of the statistic is (a) 100 (b) 4 (c) 35 (d) unknown Samples are often used in research because of (a) time (b) cost (c) subject availability (d) all of the above Which method of sampling is more likely to yield biased results? (a) systematic sampling (b) convenience sampling (c) cluster sampling (d) random sampling A John Hopkins University researcher surveys all cardiac patients in each of 30 randomly selected hospitals. This procedure is best described as (a) systematic sampling (b) convenience sampling (c) cluster sampling (d) rand

Explanation / Answer

5. since only the registered pharmacists we were taken into sample hence we can conclude that the population consists of all registered parmacists in the 4 day convention i.e. (a)

6. sample statistic is nothing but the sample mean i.e. 35.

7. well we definetly take all the given factors into account so answer is (d)

8. convienence sapling is most prone to bias as it not representative of the entire population (b)

9. this an example of random sampling due to its nature (d)

10. this is an example of systematic sampling (a)

11. non sampling errors are usually occuring due to recording errors so answer is (c)

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