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- Homework Statement
- A student was asked to find a 99% confidence interval for the proportion of students who are left-handed using data of randomly chosen 80 students. Which of the following is the correct interpretation of interval 0.20 < p < 0.40? You may choose more than one option

a) With 99% confidence, the proportion of all students who are left-handed is between 0.20 and 0.40

b) There is a 99% chance that the proportion of the population is between 0.20 and 0.40

c) There is a 99% chance that the proportion of left-handed students in a sample of 80 students will be between 0.20 and 0.40

d) The proportion of all students who are left-handed is between 0.20 and 0.40, 99% of the time

e) With 99% confidence, a randomly selected student who are left-handed in the proportion of their classes that is between 0.20 and 0.40

- Relevant Equations
- None

I think (e) is wrong because the proportion should be out of the whole population, not only in a certain class and option (a) to (d) looks like identical to me so I answered (a), (b), (c) and (d) but my answer is wrong.

Where is my mistake? Thanks

Where is my mistake? Thanks