Textbook ExpertVerified Tutor
11 Nov 2021
Given information
As per the given question,
- According to a Field Poll, % of California adults (actual results are out of surveyed) feel that “education and our schools” is one of the top issues facing California.
- We wish to construct a % confidence interval for the true proportion of California adults who feel that education and the schools is one of the top issues facing California.
To find:- A % confidence interval for the population proportion
Step-by-step explanation
Step 1.
As per the given question,
- , or
- The critical value can be expressed as (from standard normal table).
- Hence, the % conference interval value is:-
, where is , is and is .
Or,
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