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Make Test Booklet 47. T. The histogram below displays the frequencies of waiting times, in minutes, for 175 patients in a dentist's office. 100-+ 80- Number of Patients 20 Waiting Time (minutes) Which of the following could be the median of the waiting times, in minutes? (A) 2.50 (B) 7.25 (C) 12.25 (D) 15.00 17.50 48. The caffeine content of 8-ounce cans of a certain cola drink is approximately normally distributed with mean 33 milligrams (mg). A randomly selected 8-ounce can containing 35 mg of caffeine is 1.2 standard deviations above the mean. Approximately what percent of 8-ounce cans of the cola have a caffeine content greater than 35 mg? (A) 1% (B) 8% 12% (D) 16% 99% The p-value for a one-sided t-test is 0.10. If the test had been two-sided, what would the p-value have been? 0.05 0.20 (C) 0.90 (D) 0.95 (E) It depends on the direction of the alternative hypothesis. Page 22 of 42 AP Statistics