QUESTION
A consumer group suspects that a large food chain makes extra money by supplying less than the specified weight of 16 oz in its standard âone poundâ packages of ground beef. A random sample of 10 packages yields a mean weight of 14.7 oz, with a calculated standard error of the mean of 0.26 oz. Using this information, do both of the following:a) Construct a 95% confidence interval.b) Interpret your results in the context of the groupâs suspicions.
ANSWER:
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