Question

1. Under coverage is a problem that occurs in surveys when some groups in the population...

1. Under coverage is a problem that occurs in surveys when some groups in the population are underrepresented in the sampling frame used to select the sample. We can check for under coverage by comparing the sample with known facts about the population.

a. What is the standard deviation for the number of Hispanics in a sample? [2 points]

Math   Statistics-And-Probability   
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Answer #1

ANSWER:

SRS of n= 500 people from a population that is 25% Hispanic. (iam using this two values by solving this ....i hope this will helpful.....any doubt pls ping me)

The standard deviation for the number of Hispanics in the sample is obtained as shown below:

That is, and

The required standard deviation is,

Hence standard deviation for the number of Hispanics in the sample is 9.68.

Part a

Thus, the standard deviation for the number of Hispanics in the sample is 9.68

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