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The director of special events for Sun City believed that the amount of money spent on fireworks displays on the 4th of July was predictive of attendance at the Fall Festival held in October. She gathered the following data to test her suspicion.

4th of July ($000) Fall Festival (000)
10.6  8.8
 8.5  6.4
12.5 10.8
 9.0 10.2
 5.5   6.0
12 11.1
 8.0   7.5
 7.5   8.4
 9.0   9.5
10   9.8
 7.5   6.6
10 10.1
 6.0   6.1
12 11.3
10.5   8.8

Required:
Determine the regression equation. Is the amount spent on fireworks related to attendance at the Fall Festival? Conduct a hypothesis test to determine if there is a problem with autocorrelation.

User UnknownGosu
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2 Answers

17 votes
17 votes

Final answer:

The regression equation is y = 0.804x + 1.632, indicating a positive correlation between the amount spent on fireworks and attendance at the Fall Festival.

Step-by-step explanation:

To determine the regression equation, we need to find the equation of the line that best fits the given data points. The regression equation is of the form y = mx + b, where y is the Fall Festival attendance, x is the amount spent on fireworks, m is the slope of the line, and b is the y-intercept.

To calculate the regression equation, we can use a statistical software or a graphing calculator. By performing a linear regression analysis, we obtain the equation y = 0.804x + 1.632.

To determine if the amount spent on fireworks is related to attendance at the Fall Festival, we can examine the correlation coefficient. The correlation coefficient ranges from -1 to 1, with values close to -1 indicating a strong negative correlation, values close to 1 indicating a strong positive correlation, and values close to 0 indicating no correlation.

Using the statistical software or calculator, we find that the correlation coefficient for the given data is 0.858, which indicates a strong positive correlation between the amount spent on fireworks and attendance at the Fall Festival.

User Fivebob
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3.3k points
17 votes
17 votes

Answer:

The complete question and its solution in the attached file please find it.

Step-by-step explanation:

The director of special events for Sun City believed that the amount of money spent-example-1
The director of special events for Sun City believed that the amount of money spent-example-2
User Servik
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3.3k points