Quiz

A study was done to estimate the mean amount of money spent gambling on the day that a gambler wins a jackpot of more than $10,000.  Data was only available on 12 such gamblers.  These gambler had spent a mean of $300 on their winning day.  Their standard deviation was $150.  Determine a 95% confidence interval for this mean.  Use a complete sentence to interpret this confidence interval in the context of the question.  What assumptions have you made?