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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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nameless23 nameless23
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6 years ago
From a population of cans of coffee marked 12 ounces, a sample of 25 cans is selected and the contents of each can are weighed. The sample revealed a mean of 11.8 ounces and a standard deviation of 0.5 ounces. Test to see if the mean of the population is at least 12 ounces. (Assume the population is normally distributed.) Use a .05 level of significance.
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#1
6 years ago
H0:   12
Ha:  < 12 t = 2; therefore, reject H0 . There is sufficient evidence at  = .05 to conclude that the population mean amount of coffee is less than 12 ounces.
nameless23 Author
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#2
6 years ago
 Thinking Face hmm OK, ty
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