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C. Grab Bag 13. A grass seed company is testing the germination rates for its...

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Finance

C. Grab Bag

13. A grass seed company is testing the germination rates for its grass seed mix. In a test of seven bags of seed, the company found germination rates of 87.2%, 88.1%, 87.7%, 87.5%, 87.7%, 89.1%, and 86.6%.

a. Calculate the mean germination rate based on these samples.

b. Calculate the standard deviation of the germination rates of these samples. (Avoid rounding until the end; express your final answer as a percent carried to two decimal places.)

c. The companys quality control standards specify that germination rates should average 87.5% with a standard deviation of 1.0%. How do the results of this test stand up against these standards?

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