Concept explainers
Hello, can you please help me solve this question ?
This is a confidence interval level question :
In a poll of 1000 adults, 341 said they were comfortable with technology. Construct a 95% confidence
I have attempted to solve this twice but I am doing something wrong.
Confidence interval:
The (1-α) % confidence interval for proportion p is given by,
Computing the 99% confidence interval for population proportion:
It was found that, 341 out of the 1,000 adults said that they were comfortable.
That is, n=1,000 and the sample proportion, p-hat = 0.341 (=341/1,000). The confidence level is 95%. Therefore, the significance level, α = 0.05 and the z value corresponding to α/2 is 1.96. The 95% confidence interval for population proportion is given by:
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 2 images
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning