Question

4 American theatres know that a certain hit movie ran an average of 84 days in each city, and the corresponding standard deviation was 10 days. The manager of the south-eastern district was interested in comparing the movie's popularity in his region with that in all of American's other theatres. He randomly chose 75 theatres in his region and found that they ran the movie an average of 81.5 days. State appropriate hypotheses for testing whether there was a significant difference a. in the length of the picture's run between theatres in the south-eastern district and all of American's other theatres. (7 Marks) At 1 percent significance level, test these hypotheses (7 Marks) b. 5 Answer the following questions​

Answer 1

Explanation:

নমস্কার অংশইনমস্কার অংশই