Write and solve a proportion to answer the question.
1 answer:
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Answer:
Option B) In control as this one data point is not more than three standard deviations from the mean
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 104 rotations per minute
Standard Deviation, σ = 8.2 rotations per
We are given that the distribution of process is a bell shaped distribution that is a normal distribution.
Formula:
For x = 118
Thus, we could say that this data point lies within three standard deviations from the mean as:
Thus, it could be said
Option B) In control as this one data point is not more than three standard deviations from the mean