In a recent poll of 1,200 homeowners in the United States, one in five homeowners reports having a home equity loan that he or she is currently paying off. Using a confidence coefficient of 0.99, derive the interval estimate for the proportion of all homeowners in the United States that hold a home equity loan.

Interval estimate for the proportion of all homeowners in the United States that hold a home equity loan lie between (.17033 , .22967 ) or 17% to 22.9%

Step-by-step explanation:

Given -

In a recent poll of 1,200 homeowners in the United States, one in five homeowners reports having a home equity loan that he or she is currently paying off.

If one in five homeowners reports having a home equity loan then for 1200 homeowners = = 240 homeowners reports having a home equity loan.

Sample proportion = = 0.2

confidence coefficient = 0.99

= 1 - confidence coefficient  = 1 - 0.99 = .01

 =  2.58

interval estimate for the proportion of all homeowners in the United States that hold a home equity loan

=  

     =  

    =

    =

    =

    = (.17033 , .22967 )

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: