The following independent samples show the delivery times for two suppliers of raw materials (in days). A company currently uses Supplier A but will switch to Supplier B if its average delivery time is less than that for Supplier A. Use Excel to conduct the appropriate hypothesis test. Use .10.
Definitions:
Normal Model
A probability distribution that is symmetrical around its mean, predicting that data near the mean are more frequent in occurrence than data far from the mean.
English Exam
A standardized test that assesses the proficiency and understanding of the English language.
Normal Probability Plot
A graphical technique used to identify deviations from normality, showing the relationship between the data and the normal distribution.
Normally Distributed Data
A type of data distribution in which the data forms a symmetrical bell-shaped curve around the mean.
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