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I need help with my Stats Homework?

The average American sees 3.9 movies at the theater each year. A curious student polls 30 friends and family over the course of a week. He finds that his friends have been seen an average of 4.5 movies with a standard deviation of 1.2 movies. 

1. Does this sample provide evidence that people are attending the movies more often? Provide a complete significance test to support your answer.

2. The student insists to his media teacher at school that movie attendance is on the rise. Do you agree with this conclusion?

3. Find and interpret a 95% confidence interval for this sample.

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