monthly residential electricity consumption in a certain region is more than 860 kilo Watt-hours (kWh). You want to test this claim. You find that a random sample of 69 residential customers has a mean monthly consumption of 890 kWh. Assume the population standard deviation is 123 kWh. At α=0.05, can you support the claim? Complete parts (a) through (e). (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer box within your choice. Use technology. (Round to two decimal places as needed.) A. The critical values are ±enter your response here. B. The critical value is enter your response here.
monthly residential electricity consumption in a certain region is more than 860 kilo Watt-hours (kWh). You want to test this claim. You find that a random sample of 69 residential customers has a mean monthly consumption of 890 kWh. Assume the population standard deviation is 123 kWh. At α=0.05, can you support the claim? Complete parts (a) through (e). (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer box within your choice. Use technology. (Round to two decimal places as needed.) A. The critical values are ±enter your response here. B. The critical value is enter your response here.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A company claims that the mean monthly residential electricity consumption in a certain region is more than 860 kilo Watt-hours (kWh). You want to test this claim. You find that a random sample of
69 residential customers has a mean monthly consumption of 890
kWh. Assume the population standard deviation is 123 kWh. At
α=0.05, can you support the claim? Complete parts (a) through (e).
(b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer box within your choice. Use technology.
(Round to two decimal places as needed.)
The critical values are
±enter your response here.
The critical value is enter your response here.
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