A battery manufacturer advertises that the average life of their batteries is 900 hours. A random sample of 15 of its batteries resulted in the following lives in hours: 995 916 590 728 510 664 539 693 739 708 917 887 849 571 555 At 10% significance level, do the data provide evidence that the mean life for the company's batteries differentiations from the advertised mean? Compute for the statistical test. Use 3 decimal places and indicate if the computed value is + or -.

MATLAB: An Introduction with Applications
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A battery manufacturer advertises that the average life of their batteries is 900 hours. A random sample of 15 of its batteries resulted in
the following lives in hours:
995 916 590 728 510 664 539 693 739 708 917 887 849 571 555
At 10% significance level, do the data provide evidence that the mean life for the company's batteries differentiations from the
advertised mean? Compute for the statistical test. Use 3 decimal places and indicate if the computed value is + or -.
Answer:
Transcribed Image Text:A battery manufacturer advertises that the average life of their batteries is 900 hours. A random sample of 15 of its batteries resulted in the following lives in hours: 995 916 590 728 510 664 539 693 739 708 917 887 849 571 555 At 10% significance level, do the data provide evidence that the mean life for the company's batteries differentiations from the advertised mean? Compute for the statistical test. Use 3 decimal places and indicate if the computed value is + or -. Answer:
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