Answer:
(a) Probability that a random sample of n = 45 oil changes results in a sample mean time < 10 minutes i=0.0001.
(b) The mean oil-change time is 15.55 minutes.
Step-by-step explanation:
Let us denote the sample mean time as x
From the Then x = mean time = 16.2 minutes
The given standard deviation = 3.4 minutes
The value of n sample size = 45
CHECK THE ATTACHMENT FOR DETAILED EXPLANATION
Please make the copy of the paper clearer
F= 14 and the answer is the elevator
started on the 14th floor. 14 + 7 - 9 - 4 + 8 - 2 :
14 Is that correct?
Answer:
11
Step-by-step explanation:
Answer:what are u asking
Step-by-step explanation: