Math146_App3_Solution_1.pdf - Math 146...

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Math& 146 Assignment #3 (Chapters 10 and 4) Solutions 1. The table below shows the data on average movie ticket prices for various years. Year Ticket Price 1971 $1.65 1975 $2.03 1980 $2.69 a) Find the linear regression equation. Let x be the number of years since 1960. Round each number to 2 decimal places.
1985 $3.55 1990 $4.22 1995 $4.35 2000 $5.39 b) Identify the slope. Describe what it represents in the context of the problem.
c) Identify the y -intercept. Describe what it represents in the context of the problem.
d) Find the correlation coefficient, rounded to 4 decimal places. How would you describe the correlation between years and average movie ticket price?
e) Using your linear regression, find the average movie ticket price for this year.

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