Question: Company ALPHA is using a Control Chart for the average with the following limits: UCL=+3; UCL=+3-.30 n n where = 100 C;
Company ALPHA is using a Control Chart for the average with the following limits:
σ σ UCL=μ+3; UCL=+3-.30
√n n where μ = 100 °C; o = 1 °C; n = 9.
If the company is taking a sample every 1 hour, what will be the average time to detect a shift of 1 °C?
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