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  • 13-05-2024
  • Mathematics
Answered

The average moviegoer sees 9.5 movies a year. A random sample of 95 moviegoers from a large university revealed that the average number of movies seen per person was 10.2. The population standard deviation is 2.8 movies. At the 0.05 level of significance, can it be concluded that this represents a change in the national average?

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