Suppose Maria, an intern, computed a 99% bootstrap confidence interval for the mean heights of 5-year olds as [100 cm, 120 cm] at a pediatrician's office and her colleague, Tom, computed a 95% confidence interval for the heights of a different set of 5-year olds visiting the same office as [105 cm, 115 cm]. Whose CI reports greater uncertainty?

a.

Maria's because her CI is wider

b.

Tom's because his CI is more precise

c.

Both samples have pretty similar uncertainty

d.

Not enough information is provided to answer this question