542(1+1/4)
542(4/4+1/4)
542(5/4)
677.5
C., because 60 is half of 120, and 12% is half of 24%
hope it is right
Answer: If the null hypothesis is true, the probability of observing a sample mean of at least 5.15 minutes is .031
Step-by-step explanation:
Answer:
19+12 = 31 pieces
Step-by-step explanation: