Question

Problem 130g

Answer 1

Given information

As per the given question,

• On May , , Gallup reported that of the  people surveyed, % of U.S. workers believe that they will continue working past retirement age.
• The confidence level for this study was reported at % with a ±% margin of error.

 

To find:- Part (g). A reporter is covering the release of this study for a local news station. How should she explain the confidence interval to her audience?

Step-by-step explanation

Step 1.

As per the given question,

• We can say with % confidence that in the range of %-%; all adult workers across the U.S. expect to carry on working on the far side retirement age.
• We can be % assured because % of the confidence intervals created from samples like this one will capture the true proportion, since the margin of errors permit us to create a range of reasonable values that can be captured.