To help you decide which of your two current suppliers deserves the larger contract next year, you
Question:
a. Find the average quality for each supplier.
b. Find the standard deviation of quality for each supplier.
c. Find the average difference in quality (International minus Custom) and its standard error.
d. Find the two-sided 95% confidence interval for the quality difference.
e. Is there a significant difference in quality? How do you know?
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a Average quality Custom 67417 International 8584 b Standard deviation Custom 129187 ...View the full answer
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