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A movie theater manager believes the average amount of money customers spend on snacks is over...

A movie theater manager believes the average amount of money customers spend on snacks is over $15.

To test the claim, a theater employee tracks the spending of 25 randomly selected customers.

The sample mean is $17.08 with a sample standard deviation of $4.81.

a) Calculate the value of the test statistic.

b) What is your decision about the null hypothesis and your conclusion about manager’s claim?

Math   Statistics-And-Probability   
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