For quality control purposes, 900 ceramic tiles were inspected to determine the proportion of defective (e.g., cracked,
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For quality control purposes, 900 ceramic tiles were inspected to determine the proportion of defective (e.g., cracked, uneven finish) tiles. Assuming that these tiles are representative of all tiles manufactured by an Italian tile company, what can you conclude from the computer output?
z-interval for proportion
With 95.00% confidence
0.025 < p(defective) < 0.035
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Related Book For
Business Statistics
ISBN: 9780133899122
3rd Canadian Edition
Authors: Norean D. Sharpe, Richard D. De Veaux, Paul F. Velleman, David Wright
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