Please attach instructions on how you would solve this using Excel. Thank you!

In 1977, the Gallup Organization asked the following questions of 275 randomly selected parents who have children in grades K-12, "Thinking about your oldest child, when he or she is at school. Do you fear for his or her physical safety?" Of the 275 parents, 66 responded that they did fear for their child's safety. The same question was asked of 275 randomly selected parents in August of 2001, with 88 responding that they feared for their child's safety. Construct a 95% confidence interval for the difference between the two population proportions, p1 - P2. State the 95% confidence interval and give the interpretation regarding the claim that the fear for child's safety has increased from 1977at the a = 0.05 level of significance