Most air travelers now use e-tickets. electronic ticketing allows passengers to not worry about a paper ticket, and it costs the airline companies less than paper ticketing. however, recently the airlines have received complaints from passengers regarding their e-tickets, particularly when connecting flights and a change of airlines were involved. to investigate the problem, an independent watchdog agency contacted a random sample of 20 airports and collected information on the number of complaints the airport had with e-tickets for the month of march. the information is reported below. 14 14 16 12 12 14 13 16 15 14 12 15 15 14 13 13 12 13 10 13 at the 0.05 significance level, can the watchdog agency conclude the mean number of complaints per airport is less than 15 per month

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

i dont understand the question? ?

step-by-step explanation: