A company claims that the mean monthly residential electricity consumption in a certain region is more than 860 ​kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 65 residential customers has a mean monthly consumption of 900 kWh. Assume the population standard deviation is 123 kWh. At α=0.01​, can you support the​ claim? Complete parts​ (a) through​ (e). ​(a) Identify H0 and Ha. Choose the correct answer below.     A. H0​: μ>860 ​(claim) Ha​: μ≤860   B. H0​: μ=860 ​(claim) Ha​: μ≠860   C. H0​: μ≤860 Ha​: μ>860 ​(claim)   D. H0​: μ≤900 Ha​: μ>900 ​(claim)   E. H0​: μ=900 Ha​: μ≠900 ​(claim

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.