dave takes the bus to campus every day. he soon realizes that the mtd bus is often late. feeling frustrated by this, he contacted the mtd to discuss this issue. the mtd claims that at dave's bus stop, the bus is late 11% of the time. dave believes that the true percentage is higher than that. he starts collecting data on randomly selected days and times. in a sample of size 52, the bus was late exactly 11 times. is this evidence that the mtd claim is untrue?