Mathematics, 28.02.2020 04:02 kaylarojascliff
A machine that is programmed to package exactly 1.20 pounds of cereal is being tested for its accuracy. Assume that the population standard deviation is 0.66 pounds. In a sample of 36 cereal boxes, the sample mean weight is calculated as 1.48 pounds.
a. State the null hypothesis and the alternate hypothesis.
b. Compute the value of test statistic.
c. State the decision rule at 10% level of significance that relates to a critical value method.
d. Conduct the test with the critical value method.
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