Mathematics, 05.05.2020 21:45, mooncake9090
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 0.12 kWh. A previous study found that for an average family the standard deviation is 1.2 kWh and the mean is 17.9 kWh per day. If they are using a 90% level of confidence, how large of a sample is required to estimate the mean usage of electricity? Round your answer up to the next integer.
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 15:30, nicpinela1234
The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of Γ the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7
Answers: 3
Mathematics, 21.06.2019 21:30, alexialoredo625
Plz hurry evaluate the expression a+b where a=8 and b=19
Answers: 1
Mathematics, 21.06.2019 22:00, taliyahjhonson1
The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample
Answers: 1
Do you know the correct answer?
The electric cooperative needs to know the mean household usage of electricity by its non-commercial...
Questions in other subjects:
Mathematics, 12.04.2021 19:00
Mathematics, 12.04.2021 19:00
Law, 12.04.2021 19:00
Mathematics, 12.04.2021 19:00
