A survey of 30 random shoppers found a 95% confidence interval that shoppers will spend between $24.50 and $28.30.

A second survey surveyed 25 random shoppers.

The second interval will be narrower because the sample size is smaller and this creates less uncertainty.

The second interval will be wider because it is likely that there are more outliers.

The second interval will be narrower because it is likely that there are less outliers.

The second interval will be wider because the sample size is smaller and this creates more uncertainty.