Create 90% and 99% confidence intervals around the means calculated in 2.

Create 90% and 99% confidence intervals around the means calculated in 2. Discuss your findings and explain carefully to your boss what you are doing and why this provides relevant information

Audrey Horne

Mean of the difference of before and after consultant  239.016, 

Min-469      Max 1363

367.6123 Average energy reduction    /374     

141.5669 Average energy increase     /127

210.952     267.08 95% CI/ 215.4773   262.5547 90% CI

Donna

Mean of the difference of before and after consultant 264.9659  

Min -517      Max1459

377.5872  Average energy reduction /390 frequency         

139.1455 Average energy increase  / 110 frequency

236.6086   293.3232 95%/  241.1333   288.7985 90%

Leila

Mean of the difference of before and after consultant 234.0842 

 Min -499    Max 1411

353.6349 Average energy reduction/378   

                   137.122 Average energy increase  /123

                   206.13   262.0384 95%/210.6377   257.5307 90%

Dale Cooper

Mean of the difference of before and after consultant 244.2605   

Min -547      Max1477

364.7895 Average energy usage  reduction/ 380 frequency   

139.45Average energy usage  increase/  120 frequency

215.5693   272.9517 95% 220.1958   268.3252%90

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