kayleerose414

06.03.2021 • 

Mathematics

In a previous​ year, ​% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of females aged 15 and older and finds that are living alone. Is there sufficient evidence at the level of significance to conclude the proportion has​ changed?

Ответ:

aly3048

10.08.2020

Mathematics

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Raational

Step-by-step explanation:

STEP

1

:

           13

Simplify   ——

           12

Equation at the end of step

1

:

      13

 0 -  ——

      12

STEP

2

:

Final result :

 -13            

 ——— = -1.08333

 12        

Hope this helps    

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