How much money does the average professional football fan spend on food at a single football...

How much money does the average professional football fan spend on food at a single football game? That question was posed to 45 randomly selected football fans. The sample results provided a sample mean and standard deviation of $16.00 and $2.50, respectively. Use this information to construct a 95% confidence interval for the mean. The Confidence Interval was: 16.00±____*2.5045?

Solutions

Expert Solution

Degrees of freedom = n - 1 = 45 - 1 = 44

For 44 degrees of freedom and 95% confidence interval:

Critical t value = 2.015

Hence,

95% confidence interval will be:

(15.25, 16.75)

orchestra answered 1 year ago

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