Answer:
12
Step-by-step explanation:
The LCD of 6 and 4 is 12.
6: 6, 12
4: 4, 8, 12
Answer:
He made $372
Step-by-step explanation:
1692/ 36=47
47*8=372
Answer:
Step-by-step explanation:
Since population std deviation is not known, we use t critical value for testing of hypothesis.
a) 90% conf level when n =28
df = 27, t critical = 1.706
b) 95% 28
df =27 and t critical = 2.052
c) 90% and 15
df =14 and t critical = 1.761
d) 95% and n =15
df =14: t critical = 2.145