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Evidence of a significant difference

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Two different companies are competing for the same government contract to fix computers. They both produced very similar bids. The person in charge of determining who is awarded the contract is very interested in response times (i.e. how long it takes from when the call is made until when the computer is fixed) and he will differentiate the two companies based on this fact. He obtains both companies records for the past 3 years, randomly selects 50 jobs from each and records the response times. His summary statistics are given in the table.
Mean
SD
Company A
8.0 hrs
1.8 hrs
Company B
6.4 hrs
2.5 hrs

Is there evidence of a significant difference in the response times for the two groups? Justify your answer.

Reference no: EM132518568

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