Multiple choice Please select the best answer and click subm

Multiple choice: Please select the best answer and click \"submit.\" Suppose a study estimated that 68% of the residents of a town (with an error range of plus or minus 8 percentage points at 95% confidence) favor expanding the park and recreation department. Which of the following percentages of the town\'s resisdents may favor expanding the park and recreation department?

Solution

we are 95% confident that the true population proportion is between 60(68-8) and 76(68+8). so he  option fits within this interval.

Answer is A