MS 150 Statistics Spring 2001 Quiz Eight

Open book quiz!  Use the formulas, tables, and figures in your book.

For the past fifty-two Friday evenings it has taken me an average xbar.gif (842 bytes) of 10 rounds of sakau with a standard deviation s of 3 rounds of sakau for me to get sakaula.  The sample size n is 52. Note that it is more than 30.  Use this data to construct a 95% confidence interval for the population mean m number of rounds of sakau required for me to become sakaula.

Statistic Equation
Calculate a confidence interval for a mean m for large n (n>30) using the population deviation s confidencelargen.gif (1296 bytes)
Calculate a confidence interval for a mean m for large n (n>30) using the sample deviation s confidencelargen_s.gif (1260 bytes)
Confidence interval for m and s for n < 30. confidencesmalln_s.gif (1259 bytes)

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