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(A-Grade) A machine in the lodge at a ski resort dispenses a hot chocolate drink. The...

(A-Grade) A machine in the lodge at a ski resort dispenses a hot chocolate drink. The average cup of hot chocolate is supposed to contain 7.75 ounces. A random sample of 16 cups of hot chocolate from the machine had a mean content of 7.62 ounces with a standard deviation of 0.3 ounces. Use 0.07 level of significance and test whether the mean amount of liquid is less than 7.75 ounces.

Math   Statistics-And-Probability   
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