A teacher instituted a new reading program at school. After 10 weeks in the​ program, it was found that the mean reading speed of a random sample of 18 second grade students was 92.9 wpm. What might you conclude based on this​ result? Select the correct choice below and fill in the answer boxes within your choice. ​(Type integers or decimals rounded to four decimal places as​ needed.) A). A mean reading rate of 93.9 wpm is unusual since the probability of obtaining a result of 93.9 wpm or more is . The new program is abundantly more effective than the old program.

B). A mean reading rate of 93.9 wpm is not unusual since the probability of obtaining a result of 93.9 wpm or more is. The new program is not abundantly more effective than the old program.