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CHEM 210 Final Answers Exam Questions and

1. if the p-value is greater than 0.1, we generally conclude the data are consis-

tent with the null hypothesis: true

2. what is the best way to characterize the random error present in a mea-

surement?: take replicate measurements of your analytes and using the

standard deviation and a t-table specify an error bar with a confidence limit

3. statistical interference assesses whether an observed phenomenon in the

data can reasonably be attributed to chance or not: true

4. suppose we collected a sample size n = 100 from some population and used

the data to calculate a 95% confidence interval for the population mean. now

suppose we are going to increase the sample size to n = 300. keeping all else

constant, which of the following would we expect to occur as a result of

increasing the sample size?: (1) the standard error would decrease, (2) the