section_6.1[1]

# section_6.1[1] - 3 Find the 95 margin of error and 95...

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Homework for section 6.1 - Estimating a sample mean Here is data from the Toxic Fish study for fish consumption of subjects over 65 years old: grams per day x = 252 . s = 28.5 grams the maximum value in the data was 138.7 grams. 1. How can you tell that the data does not have a normal distribution? 2. Why is it OK to use the 95% rule (from the normal distribution) to make a margin of error and confidence interval for the population mean if the sample size is n = 250?
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Unformatted text preview: 3. Find the 95% margin of error and 95% confidence interval for the mean if n = 250. Use the sample standard deviation (s) in place of σ . 4. Find the 95% margin of error and 95% confidence interval for the mean if n = 500. 5. Compare the results of #3 and #4. 6. Find the 99% margin of error and 99% confidence interval if n = 250. 7. Compare the results of #3 and #6....
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## This note was uploaded on 09/23/2011 for the course MATH 324 taught by Professor Staff during the Spring '08 term at S.F. State.

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