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 17:10
Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.
Answers: 2
question
Mathematics, 21.06.2019 17:50
Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula
Answers: 2
question
Mathematics, 21.06.2019 23:10
Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?
Answers: 3
question
Mathematics, 22.06.2019 02:00
The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?
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
Mathematics, 19.10.2019 08:20
Questions on the website: 13722367