Determining the sample size needed to achieve
When determining the sample size needed to achieve a particular error estimate you need to know σ. What are two methods of estimating σ if σ is unknown?
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Given A = 19o, b = 12, and a = 10, use Law of Sines to solve triangle (if possible) for value of c. If two solutions exist, determine both.
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Determine polar coordinates of point whose rectangular coordinates are (-2,4). Write the angle in degrees rounded to nearest tenth. Write your value for r as simplified radical.
Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Thirty randomly selected students took the calculus final.
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