can you please help with questions 1.10 1.10 Classify the following sampling met

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can you please help with questions 1.10

1.10 Classify the following sampling methods indicated by the respective statements as either random, stratified, systematic, cluster or convenience: a. A complete list of all stockholders is compiled, and every 500th name is selected from each bro kerage house. b. At the annual stockholders' meeting, a survey is conducted of all who attend. c. Five different brokerage houses are randomly selected, and a survey is made of all of their clients d. A computer file of all stockholders is compiled so that they are all numbered consecutively, then e. All of the stockholders' zip codes are collected, and five stockholders are randomly selected from who won shares of Coca Cola random numbers generated by computer are used to select the sample of stockholders. each zip code. 1.11 select a random sample of 12 households from 150 neighborhood households using the random number table, Table 1 in Appendix II. Start with a random starting point and do not forget to men- tion the starting point .1Z Select a stratified random sample of 30 students consisting of 12 males and 18 females from your school. There is a total of 2,000 students consisting 800 males and 1,200 females. Use Table 1 in Appendix II. Describe the method

Explanation / Answer

1.10

(a)

Here every 500th sample is selected, so this is systematic sampling.

(b)

only those who attended the meeting are sampled, so this is a convenience sampling.

(c)

first a random sample of 5 brokerage house ( clusters ) is selected and then from each house only those who won Coca Cola shares are selected. so this is a two stage cluster sampling.

(d)

a random sample is selected from the full list of the stockholders, so this is a simple random sampling.

(e)

5 samples are selected from each of the zip code regions(strata) . So this is stratified sampling.

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