"WestWays magazine sampled random flights from LAX and George Bush Airport (IAH - Houston) to compare their rate of delayed departures. For LAX, 205 of the 845 flights sampled were delayed; for IAH, 312 out of 1296. Test at α = 0.05 whether these samples indicate a different delayed departure rate for these airports. Do the test by hand (using Minitab just for the p-value) and confirm your results with Minitab. Interpret your results and state your conclusion in terms of the data."