Table 1 gives flight arrival numbers from a random sample of flights for two airlines.
Early On-time Late Total
Airline 1 133 416 151 700
Airline 2 58 354 88 500
Total 191 770 239 1200
Test whether there is a difference between the two airlines in the percent of flights that arrive late.
(a) Find the relevant sample proportions in each group and the pooled proportion. (round answer to 3 decimals, if needed)
P-hat1 = ______________
P-hat2 = ______________
P-hat = ______________
(010193)