A student organization at a university is interested in estimating

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1) A student organization at a university is interested in estimating the proportion of students in favor of showing movies biweekly instead of monthly.   A SRS of 423 students revealed that 180 are in favor of showing movies biweekly. 

State the point estimate.  (Round to two decimal places.)

2)  A student organization at a university is interested in estimating the proportion of students in favor of showing movies biweekly instead of monthly.   A SRS of 423 students revealed that 180 are in favor of showing movies biweekly. 

Determine the margin of error for a 90% level of confidence.  (State the z-value used.  Round to two decimal places.)

3)  A student organization at a university is interested in estimating the proportion of students in favor of showing movies biweekly instead of monthly.   A SRS of 423 students revealed that 180 are in favor of showing movies biweekly. 

Construct a 90% confidence interval for the true proportion of student in favor of showing movies biweekly instead of monthly.  (Round to two decimal places.)