Mathematics, 16.07.2021 06:30 kaylaelaine18
The electric cooperative needs to know the mean household usage of electricity by its non-commercial customers in kWh per day. They would like the estimate to have a maximum error of 0.09 kWh. A previous study found that for an average family the variance is 5.76 kWh and the mean is 16.6 kWh per day. If they are using a 98% level of confidence, how large of a sample is required to estimate the mean usage of electricity
Answers: 1
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The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?
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