Question

In: Statistics and Probability

A student polls his school to see if students in the school district are for or...

A student polls his school to see if students in the school district are for or against the new legislation regarding school uniforms. She surveys 450 students and finds that 214 are against the new legislation.

Calculate the EBP. Use a 90% Confidence Level. Fill in the blank, round to three decimal places.

Solutions

Expert Solution

We have given here,                                                  
                                                  
x=214                                              
n=450                                              
Estimate for sample proportion                                                  

Level of significance is =1-0.90=0.1                                          
Z critical value(using Z table)=1.645                                          

Lower limit for 90% confidence for population proportion=0.437

Upper limit for 90% confidence for population proportion=0.514


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