Problem 124d

Given information

As per the given question,

• Another question in the poll was “[How much are] you worried about the quality of education in our schools?”
• Sixty-three percent responded “a lot”.
• We are interested in the population proportion of adult Americans who are worried a lot about the quality of education in our schools.

To find:- Part (d). The sampling error given by Yankelovich Partners, Inc. (which conducted the poll) is ±%. In one to three complete sentences, explain what the ±%                              represents.

Step-by-step explanation

As per the given question,

• The sampling error can be assessed as %%, where the error bound is maximum.
• Hence, the estimated percentage of Americans who tend to worry about the quality of education in school is in the range of %%