Question 11 (1 point) What is the area under the normal curve between z = -2.0 and z = 0.0? 1) 0.4773 2) 0.5227 3) 0.0227 4) 0.9773 Question 12 (1 point) A survey of 25 retail stores revealed that the average price of a microwave was $155, with a population standard deviation of $10. Assuming the population is normally distributed, what is the 95% confidence interval to estimate the true cost of the microwave (assume the population is normally distributed and the Z value is 2.0)? 1) $151 to $159 2) $146 to $154 3) $130 to $170 4) $135 to $175