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The director of a green energy company is interested in comparing two different methods of installing...

The director of a green energy company is interested in comparing two different methods of installing solar light panels. An experiment is conducted with 30 technicians using the old method and the other 45 technicians using the new method. For the 30 technicians using the old method, the average time was 643 minutes with 57.9 standard deviation. For the 45 technicians using the new method, the average time was 499 minutes with 93.6 standard deviation.

Conduct an analysis to determine whether there is a difference in the average time to complete the installation of the solar panels. Provide the degrees of freedom. ROUND TO 4 DECIMAL PLACES.

Math   Statistics-And-Probability   
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