We want to know the true proportion of students

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Problems 1-5: We want to know the true proportion of students that are ok with online courses. We take a sample of 120 students, and 72 said they are ok with online courses. We want to create a 95% confidence interval. Answer the questions below:
1) What is the point estimate for the population proportion? 2) What is the standard error? 3) What is the z score for 95% confidence?

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