From a population of cans of coffee marked "12 ounces," a sample of 50 cans was selected and the contents of each can were weighed. The sample revealed a mean of 11.8 ounces with a standard deviation of 0.5 ounces
a. Formulate the hypotheses to test to see if the mean of the population is at least 12 ounces.
b. Compute the test statistic.
c. Using the p-value approach, what is your conclusion? Let ? = .05.
a. H0: ? ? 12
Ha: ? < 12
b. t = -2.83
c. p-value (.0034) < .005; therefore, reject H0
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