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tommyhakinen
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Homework Statement
A dumpling manufacturer selects random sample of 28 dumplings and find that the mean and sample standard deviation are 101 g and 2.5 g respectively.
The production standard of dumplings is to have a 100g. Based on the sample, can manufacture conclude, at 5% level of significant, that the production standard is met? Assume the distribution is normal.
The Attempt at a Solution
Since sigma is not know, t-distribution is used. However, I have problem determining the H1. Is this a one or two tails test? I believe it is a two tails test from this sentence.
The production standard of dumplings is to have a 100g
Any advise? Thanks...