Answer: a) 0.84 b) 0.67 c) 1.28
Step-by-step explanation:
Using the standard normal distribution table for z-value , we have
(a) The value of
would result in a 80% one-sided confidence interval : 
(b) The value of
would result in a 85% one-sided confidence interval : 
(c) The value of
would result in a 90% one-sided confidence interval : 
All you do is divide -12/20 by 4/4 which is -3/5
Answer:
Step-by-step explanation:
Answer:
d 32 ft
Step-by-step explanation:
multiply 8 and 4