Question Details

What is the p-value associated with the sample results 



1.	A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft drink. A random sample of 49 bottles is selected, and the contents are measured. The sample yielded a mean content of 11.88 ounces with a standard deviation of 0.35 ounces.

a.	Formulate the hypotheses to test to determine if the machine is in perfect adjustment.
b.	Compute the value of the test statistic.
c.	Compute the p-value and give your conclusion regarding the adjustment of the machine. Let  = .05.


2.	"D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an improved production process, it is believed that there has been an increase in the life expectancy of its "D" size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours.

a.	Formulate the hypotheses for this problem.
b.	Compute the test statistic.
c.	What is the p-value associated with the sample results ? What is your conclusion based on the p-value? Let  = .05.




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