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An airline claims that 75% of its flights depart on time. A sample of 100 flights was examined and it was determined that 73% left on time.

An airline claims that 75% of its flights depart on time. A sample of 100 flights was examined and it was determined that 73% left on time. If the goal is to test whether less than 75% of the flights depart on time, what is the value of the critical test statistic at the 10% level of significance?

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