Laptop Battery Charge Time Narrative

question 105

Essay

Laptop Battery Charge Time Narrative
A computer laboratory manager was in charge of purchasing new battery packs for her lab of laptop computers. She narrowed her choices to two models that were available for her machines. Since the models cost about the same, she was interested in determining whether there was a difference in the average time the battery packs would function before needing to be recharged. She took two independent random samples and computed the following summary information:
-Refer to Laptop Battery Charge Time Narrative. Is it reasonable to assume equality of variances in this ? Justify your answer.

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Definitions:

Semitendinosus

A muscle located in the back of the thigh, part of the hamstrings group, involved in flexing the knee and extending the hip.

Depresses Mandible

The action that lowers the lower jaw, typically involving muscles like the digastric muscle.

Temporalis

A broad, fan-shaped muscle on each side of the head that aids in chewing by elevating the mandible (lower jaw).