H FEMALE AND MALES = 2752. FIND P HAT f AND P HAT m , THE SAMPLE PROPORTIONS WHO HAVE VISITED A PUBLIC LIBRARY IN THE LAST 12 MONTHS, FOR FEMALES AND MALES RESPECTIVELY. WHAT IS THE DIFFERENCE IN SAMPLE PROPORTIONS P HAT f -P HAT m ? FIND A 90% CONFIDENCE INTERVAL
a survey asked a random sample of n= 2752 us adults whether they had visited a public library in the last 12 months. The results for males and females are shown below: FEMALES = YES 726 FEMALES= N0 697 TOTAL 1423 MALES = YES 505 MALES =NO 824 TOTAL 1329 OVERALL TOTAL YES = 1231 OVERALL TOTAL NO= 1521 OVERALL TOTAL WITH BOTH FEMALE AND MALES = 2752. FIND P HAT f AND P HAT m , THE SAMPLE PROPORTIONS WHO HAVE VISITED A PUBLIC LIBRARY IN THE LAST 12 MONTHS, FOR FEMALES AND MALES RESPECTIVELY. WHAT IS THE DIFFERENCE IN SAMPLE PROPORTIONS P HAT f -P HAT m ? FIND A 90% CONFIDENCE INTERVAL FOR THE DIFFERENCE IN POPULATION PROPORTIONS Pf - Pm? round your answers to two decimal places. CAN WE CONCLUDE FROM THE CONFIDENCE INTERVAL THAT THERE IS A DIFFERENCE IN PROPORTIONS ? ARE MALES OR FEMALES MORE LIKELY TO VISIT THE PUBLIC LIBRARY?
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