5. - A consumer product-testing organization wished to compare the annual power

Question

5. - A consumer product-testing organization wished to compare the annual power consumption (kwh) of five different brands of dehumidifier (Treatment Factor). Because power consumption depends on the prevailing humidity level, it was decided to monitor each brand at four different levels of humidity (Blocking Factor). The sum of squares obtained from these 20 data points are the following: SSTotal = 171,119.75 SSE = SStreatment 53,231.00 ssblock-11621775 and a) Does the power consumption depends on the brand of the humidifier? No, because p-value YES, because p-value b) Suppose no Blocking Factor was included in the analysis. What would had been th conclusion for this simpler experiment? Different as in (a) Same as in (a)

Explanation / Answer

SSE = SSTotal - SS treatment - SS Block   
     = 171119.75 - 53231 - 116217.75 = 1671
a) Yes, P-value 5.41935E-09
b) Same as in (a)
There is significance difference among the means of treatment as well as blocks

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