All else beingequal, the width of a confidence interval will be (read carefully) : Options include: narrower for 99% confidence than for 95%...

All else being equal, the width of a confidence interval will be (read carefully):

Options include:

narrower for 99% confidence than for 95% confidence.

determined only by the level of confidence.

wider for a sample size of 100 than for a sample size of 50.

Please help this is all the question says, I got it wrong and guessed. Thanks a lot. I do not see this in my notes from class.