The average moviegoer sees 8.5 movies a year. A moviegoer is defined as a person

Question

The average moviegoer sees 8.5 movies a year. A moviegoer is defined as a person who sees at least one movie in a theater in a 12-month period. A random sample of 40 moviegoers from a large university revealed that the average number of movies seen per person was 9.6. The population standard deviation is 3.2 movies. At the 0.05 level of significance, can it be concluded that this represents a difference from the national average?

Step 1. Stae hypothesis

Step 2. Find critical value ( from table)

            Critical z value is?

Step 3. Z test value is ?

Step 4. Reject the null or don't reject the null

Step 5. Conclusion statement - is or is not?

Explanation / Answer

The average moviegoer sees 8.5 movies a year. A moviegoer is defined as a person

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