7. Construct a 90% confidence interval for the difference in the means (color minus black and white S. State the point estimate and the margin of error for your confidence interval. 9. Write a sentence to interpret your confidence interval. 10. On your own paper, write another report to the agencies with your recommendation on paying for displays based on the practical significance. Use complete sentences and proper grammar. B use terms that can be understood by the travel agency instead of statistical vocabulary words. You should be a minimum of 2 sentences but no longer than 1% page and may be neatly handw