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An SRS of 100 flights by Speedy Airlines showed that 64 were on time. An SRS of 100 flights by Happy Airlines showed that 80 were on time. Let pS be the proportion of on-time flights for all Speedy Airline flights, and let pH be the proportion of all on-time flights for all Happy Airlines flights. Is there evidence of a difference in the on-time rate for the two airlines
An SRS of 100 flights by Speedy Airlines showed that 64 were on time. An SRS of 100 flights by Happy Airlines showed that 80 were on time. Let pS be the proportion of on-time flights for all Speedy Airline flights, and let pH be the proportion of all on-time flights for all Happy Airlines flights. Is there evidence of a difference in the on-time rate for the two airlines
Answer:Yes, Since pH = 0.8 > pS = 0.64So, on average, more Happy Airlines flights were on time than Speedy Airlines FlightsStep-by-step explanation:Since for Speedy Airlines, 64 out of a hundred were on time, the proportion is,And for Happy Airlines, 80 out of 100 were on time, so,since pH is greater than pS, so we conclude that there is evidence of a difference in the on-time rate for the two airlinesThat is, Happy Airlines flights were on time 80% of the time and Speedy Airlines flights were on time 64% of the time...
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