Just plug the values into the equation and solve
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To find the rate of change, do:
1) 4-2 / 2-1 = 2
2) 8-4 / 3-2 = 4
3) 16-8 / 4-3 = 8
1) 4-2 / 2-1 = 2
2) 8-4 / 3-2 = 4
3) 16-8 / 4-3 = 8
Answer:
The answer is given below
Step-by-step explanation:
The mean (μ) = 21.2 minutes and the standard deviation σ = 3.5 minutes.
the oil-change facility will perform 45 oil changes between 10 A.M. and 12 P.M, therefore the sample size n = 45
there be a 10% chance of being at or below. From the normal distribution table, The z score corresponding to a probability of 10% (= 0.1) is -1.28.
z = -1.28
To calculate the mean oil-change time, we use the formula: