Amajor airline company is concerned that its proportion of late arrivals has substantially increased in the past month. historical data shows that on the average 18% of the company airplanes have arrived late. in a random sample of 1,250 airplanes, 250 airplanes have arrived late. if we are conducting a hypothesis test of a single proportion to determine if the proportion of late arrivals has increased: what is the correct statement of null and alternative hypothesis? a. h0: p < .18 and ha: p ³.18b. h0: p £.18 and ha: p > .18c. h0: p =.18 and ha: p ¹ .18d. h0: p > .18 and ha: p £.18e. h0: p £.20 and ha: p > .20