Hi, please show the work. Thank you.

In a survey of 700 music teachers, 399 said that the video games Guitar Hero and Rock Band have a positive effect on music education. A researcher wants to construct an 80% confidence interval for the proportion of music teachers who believe that these video games have a positive effect. What is the critical value, 80% confidence interval, P-value, and E(margin of error)?

Critical value:

80% confidence interval:

P-value:

E(Margin of error):