Alice works at home depot and makes $70 per day plus $18/hr. bob works at lowe's and makes $106 perday plus $12/hr. how many hours must both of them work to make the same amount of money? how much money do they make.

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.