Question:
Based on the premise "Her appearance presented a valiant attempt at smartness.", can we conclude that "She was smartly dressed."?
****
Answer:
it is not possible to tell

Question:
Based on the premise "no no i haven't heard of that um-hum", can we conclude that "I have not heard about that."?
****
Answer:
yes

Question:
Based on the premise "uh i remember uh i've i've worked since i was well i started delivering papers when i was ten and i had a real job when i was thirteen so i've you know worked most of my life but i remember when i got out of high school all through high school was boy i can't wait to get out of high school i can't wait to get out of high school and i wanted to go to college and i had the grades to go to college and i got accepted to college but when i got out of high school i kind of said you know what am i going to do now you know it's like", can we conclude that "I've been working since I was ten."?
****
Answer:
yes