# Question

After years of rapid growth, illegal immigration into the United States has declined, perhaps owing to the recession and increased border enforcement by the United States (Los Angeles Times, September 1, 2010). While its share has declined, California still accounts for 23% of the nation's estimated 11.1 million undocumented immigrants.

a. In a sample of 50 illegal immigrants, what is the probability that more than 20% live in California?

b. In a sample of 200 illegal immigrants, what is the probability that more than 20% live in California?

c. Comment on the reason for the difference between the computed probabilities in parts

a. In a sample of 50 illegal immigrants, what is the probability that more than 20% live in California?

b. In a sample of 200 illegal immigrants, what is the probability that more than 20% live in California?

c. Comment on the reason for the difference between the computed probabilities in parts

## Answer to relevant Questions

A and b. σ 30. A random sample of size n=100 is taken from a population of size N=2,500 with mean µ = 245 and variance σ- =81. a. Is it necessary to apply the finite population correction factor? Explain. Calculate the ...Suppose in the previous question that the analyst had randomly chosen 12 CEO compensations for 2006. a. Is it necessary to apply the finite population correction factor? Explain. b. Is the sampling distribution of the sample ...Random samples of size n=400 are taken from a population with p= 0.10. a. Construct the centerline and the upper and lower control limits for the p chart. b. Suppose six samples of size 400 produced the following sample ...Following customer complaints about the quality of service, Dell stopped routing corporate customers to a technical support call center in Bangalore, India (USA Today, November 24, 2003). Suppose Dell's decision to direct ...According to a recent report, scientists in New England say they have identified a set of genetic variants that predicts extreme longevity with 77% accuracy (New York Times, July 1, 2010). Assume 150 patients decide to get ...Post your question

0