subject
Mathematics, 31.05.2020 21:58 alexreddin3127

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

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:40
What is the distance between the points 4,10 and -3,-14 on the coordinate plane
Answers: 2
question
Mathematics, 21.06.2019 17:00
100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance
Answers: 2
question
Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 2
question
Mathematics, 21.06.2019 20:40
Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.
Answers: 1
You know the right answer?
Yolanda conducted a poll and out of the 270 people she
surveyed, 60% were planning to live in...
Questions
question
Geography, 24.11.2020 17:00
question
Mathematics, 24.11.2020 17:00
question
Mathematics, 24.11.2020 17:00
question
French, 24.11.2020 17:00
question
Mathematics, 24.11.2020 17:00
question
Mathematics, 24.11.2020 17:00
Questions on the website: 13722362