answer only

Question 3 1 pts The gestation period of humans follows a normal distribution with a mean of 266 days and a standard deviation of 16 days. Solve for the probability that a random sample of 20 pregnancies has a mean gestation period of 260 days or less. O P(Z 2 -1.68) - 0.9535 O P (7 2 1.68) = 0.0465 O P (Z -1.19) = 0.8830 O P(Z > 1.19) = 0.1170 O P(Z 1.19) = 0.8830Question 7 1 pls Automotive engineers have found that the gas mileage in highway driving of a certain sports utility van is normally distributed with a mean of 13.6 kilometers per liter and a standard deviation of 1.5 kilometers per liter. Find the probability that a random sample of 30 sports utility vans has a mean exceeding 14 kilometers per liter. O P(Z > 1.46) = 0.0721 O P(Z -1.46) = 0.9279 O P(Z