Production Line
a Quality Control Inspector Keeps a Tally Sheet

question 144

Essay

Production Line
A quality control inspector keeps a tally sheet of the number of acceptable and unacceptable products that come off two different production lines.The completed sheet is shown below. $$\begin{array}{l}\text { Products }\\\begin{array} { | c | c c | } \hline \text { Production line } & \text { Acceptable } & \text { Unacceptable } \\\hline 1 & 152 & 48 \\2 & 136 & 54 \\\hline\end{array}\end{array}$$
-Can the inspector infer at the 5% significance level that production line 1 is doing a better job than production line 2?
Hypotheses: ___________________________________
Test statistic = ________
Conclusion: ________________
Interpretation: __________________________________________________

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