Question: An entomologist (Bug doctor) on a survey expedition in South America discovers a colony of bees that appear to represent a new species based on their wing size (measured in centimeters; cm). He knows that in the known bee population the average wing span is one inch. He obtains data (see below) for a random sample of ten newly discovered bees. Test to see if the sample mean differs significantly from the known population mean. Set alpha (α) = .05.

Data: 0.2 0.7 0.8 0.9 0.5 1.4 1.3 1.2 1.2 1.3

D1. State the Null and Alternative Hypothesis

D2. df and t _cv

D3. t =

D4. Do you reject or accept the Ho?

D5. Discuss the goals of the study, the results, and conclusions (based on the analysis, is it a new species?).

D6. What is the estimated 99% confidence interval for the population mean?

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