Which formula is used to find the Margin of Error for Proportions?
ET 1.3.23 (STATS)

Quiz
•
Mathematics
•
11th Grade
•
Hard
Elle Greene
Used 3+ times
FREE Resource
5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mean ± margin of error
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to find the Confidence Interval ?
Mean ± margin of error
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A survey was given to a random sample of voters in the United States to ask about their preference for a presidential candidate. The percentage of people who said they preferred Candidate A was 33%. The margin of error for the survey was 4.5%. Which of the following is not a reasonable value for the actual percentage of the population that prefers Candidate A?
28.1%
37.1%
35.7%
30.3%
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to increase education spending. The percentage of people who said the supported the plan to raise taxes was 38%. The margin of error for the survey was 5%. Write a confidence interval for the percentage of the population that favors the plan.
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study found a confidence interval for the mean score to be between 440 and 472. What is the margin of error on the survey? Do not write ±± on the margin of error.
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