Laptop Battery Charge Time Narrative

question 49

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. Perform the appropriate test of hypotheses to determine whether there is a significant difference in average functioning time before recharging between the two models of battery packs. Test using = 0.05.

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Definitions:

N Th

Pertaining to an unspecified member of a sequence or series, representing a general or particular position.

Geometric Sequence

A series of numbers in which each subsequent term is derived by multiplying the term before it by a constant, non-zero figure referred to as the ratio.

Population

In statistics, population refers to the entire group of individuals or items that a study intends to investigate or draw conclusions from.

Rate

A ratio that measures how one quantity changes in relation to another.