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1) a college admissions officer sampled 108 entering freshman and found that 34 of them scored...

1) a college admissions officer sampled 108 entering freshman and found that 34 of them scored less than 600 on the math SAT.
a) find the point estimate for the proportion of all entering freshman at this college who scored less than 600 on the math SAT. Round your answer to at least 3 decimal places.
the point estimate for the proportion of all entering freshman at this college who scored less than 600 on the math SAT is:

2) according to the US census bureau 33% of men who worked at home were college graduates. In a sample of 474 women who worked at home, 155 were college graduates
a) find the point estimate for the proportion of college graduates among women who work at home. round your answer to three decimal places.
the point estimate for the proportion of college graduates among women who work at home

3) In 2012 the general social survey asked 842 adults how many years of education they had. the sample mean was 9.43 years will a standard deviation of 9.63 years.
a) construct a 95% confidence interval for the mean number of years of education. round your answers to at least two decimal places.
a) a 95% confidence interval for the mean number of years in education is ----< mean < -----

Math   Statistics-And-Probability   
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