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To compare the average producing time of two firms about a specific product in a handicraft manufacturing company, two random samples from these firms were
To compare the average producing time of two firms about a specific product in a handicraft
manufacturing company, two random samples from these firms were tested. The random sample
of products produced by firm shows an average producing time of hours and a standard
deviation of hours. A total producing time of hours and a sample variance is hours are
recorded for the random sample of products from firm Assume that the producing time of each
firm follows a normal distribution. Can we conclude that firm can produce that specific product
faster than firm
Notes: Below are some upper quantiles for some Student distributions.
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