Yolanda conducted a poll and out of the 270 people she
surveyed, 60% were planning to live in their town for the
rest of their lives. She decided to conduct another poll
asking the same question, and again found that 60% of the
people in the second poll were planning to live in their town
for the rest of their lives.
If both polls had a confidence level of 90% (z*-score of
1.645), and the margin of error was 3 times greater in the
second poll, approximately how many people were
surveyed in the second poll?
E = z*
p(1-P) n = (1 – ).(
n
30 people
90 people
810 people
2,430 people

answer: true

step-by-step explanation:

12

step-by-step explanation:

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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