b. Given the answer obtained in part a, what is your tentative conclusion about random selection and possible ethnic bias?
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A local union has 10,000 members, of which 20% are Hispanic. The union selects 150 representatives to vote in the coming national election for union president. Sixteen of the 150 selected representatives are Hispanics. Although you have been told that the selection was random and that there was no ethnic bias involved in the selection, you are not sure since the number of Hispanics seems low. b. Given the answer obtained in part a, what is your tentative conclusion about random selection and possible ethnic bias? |
Explanation
16 Hispanics out of 150 representatives does not significantly mean there is ethnic bias. Since the word "Random" was used to select the representatives, so probably they used methods like :
Simple Random Sampling
Stratified Random Sampling
Cluster Random Sampling
Systematic Random Sampling
These are 4 types of random sampling techniques to show fairness in the selection process.
Answer
There is no possible ethnic bias.
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