Reference no: EM132514818

?(a) Construct a 95?% confidence interval about μ if the sample? size, n, is 35

Lower? bound:

Upper? bound:

?(b) Construct a 95?% confidence interval about μ if the sample? size, n, is 61

Lower? bound:

Upper? bound:

How does increasing the sample size affect the margin of? error, E?

A.The margin of error decreases.

B.The margin of error does not change.

C.The margin of error increases.

?(c) Construct a 99?% confidence interval about μ if the sample? size, n, is 35

Lower? bound:

Upper? bound:

Compare the results to those obtained in part? (a). How does increasing the level of confidence affect the size of the margin of? error, E?

A.The margin of error does not change.

B.The margin of error increases.

C.The margin of error decreases.

(d) If the sample size is 18 what conditions must be satisfied to compute the confidence? interval?

A.The sample must come from a population that is normally distributed and the sample size must be large.

B.The sample size must be large and the sample should not have any outliers.

C.The sample data must come from a population that is normally distributed with no outliers.