Hillary Glover was at fault in an accident in which two people were injured. She was insured with 50/100/25 liability and
$250 deductible collision insurance. The property damage to
the other vehicle was $4,800. The property damage to
Hillary's car was $6,500. The court awarded one of the injured
people $30,000 and the other person $60,000.
a. How much will the insurance company pay?
b. How much will be the responsibility of Hillary?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.