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In a random sample of 74 homeowners in a city, 22

homeowners said they would

support a ban on nonnatural lawn fertilizers to

protect fish in the local waterways. The sampling

method had a margin of error of

±3.1%.

SHOW ALL WORK!

A) Find the point estimate.

B) Find the lower and upper limits and state the interval.

 May 14, 2021
 #1
avatar+22158 
+1

The point estimate is 22/74  =  29.73%

 

Lower limit:  29.72%  -  3.1%  =  26.6%

 

Upper limit:  29.72%  +  3.1%  =  32.8%

 

Interval:  26.6%  <  value  <  32.8%

 May 14, 2021

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