# For this question, use the Linear Regression Forecasting explanation and Excel spreadsheet: Question: What is the 90% confidence interval, in dollars, for the Test Set?

6. For this question, use the Linear Regression Forecasting explanation and Excel spreadsheet:

Question: What is the 90% confidence interval, in dollars, for the Test Set?

**$6,390.49 above the point estimate, and $6,390.49 below the point estimate**- $5,611.91 above the point estimate, and $5,611.91 below the point estimate
- $6,574.17 above the point estimate, and $6,574.17 below the point estimate
- $5,558.55 above the point estimate, and $5,558.55 below the point estimate