Answered: A manufacturer is developing a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A manufacturer is developing a nickel-metal hydride battery to be used in cellular telephones instead of a nickel-cadmium battery. The director of quality control decides to evaluate the newly developed battery by picking a random sample of employees with cellular phones and asking them to use both phones until the batteries run down. The results are given in the excel data file.

At the 5% level of significance is there evidence that the new battery provides more minutes of talk time per battery charge? Show your work and give your answer in complete sentences in context of the problem.

Data Table:

Person	Old Battery Type	New Battery Type
1	72.39	89.95
2	75.25	64.60
3	82.10	71.25
4	58.98	87.07
5	67.07	103.11
6	35.98	76.46
7	75.37	83.92
8	66.00	83.42
9	73.14	84.30
10	67.14	92.48
11	83.06	93.48
12	57.00	59.11
13	65.92	92.27
14	76.12	61.81
15	85.21	72.83
16	80.73	42.17
17	60.65	83.89
18	36.63	94.41
19	77.98	70.30
20	75.40	77.72
21	84.70	84.35
22	83.75	70.63
23	67.01	68.81
24	80.62	65.54
25	91.30	82.63

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