A poll by Louis Harris and Associates took a random sample of 1249 adult Americans and asked whether they believe in ghosts and whether they believe astrology. The result is as follows Yes No Total Believe in ghosts believed astrology 450 799 1249 462 787 1249 True or False and explain: the 95% confidence interval for the difference of the proportion of adult Americans believing in ghosts and proportion believing astrology can be calculated as Pi - P2 +1.96V Pi(1- Pi) P2(1 - p2) where pi 450 and p2 462 1249 1249 1249 1249 Explain briefly.

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A poll by Louis Harris and Associates took a random sample of 1249 adult Americans and asked
whether they believe in ghosts and whether they believe astrology. The result is as follows
Yes
No
Total
Believe in ghosts
believed astrology
450
799
1249
462
787
1249
True or False and explain: the 95% confidence interval for the difference of the proportion of adult
Americans believing in ghosts and proportion believing astrology can be calculated as
P1(1– îi) , P2(1 – p2)
1.96V
450
462
Pi – P2 ±1.961
+
where pi
and p2
1249
1249
1249'
1249
Explain briefly.
Transcribed Image Text:A poll by Louis Harris and Associates took a random sample of 1249 adult Americans and asked whether they believe in ghosts and whether they believe astrology. The result is as follows Yes No Total Believe in ghosts believed astrology 450 799 1249 462 787 1249 True or False and explain: the 95% confidence interval for the difference of the proportion of adult Americans believing in ghosts and proportion believing astrology can be calculated as P1(1– îi) , P2(1 – p2) 1.96V 450 462 Pi – P2 ±1.961 + where pi and p2 1249 1249 1249' 1249 Explain briefly.
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