A company claims that the mean monthly residential electricity consumption in a certain region is more than 870 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 64 residential customers has a mean monthly consumption of 900 kWh. Assume the population standard deviation is 129 kWh. At a = 0.01, can you support the claim? Complete parts (a) through (e). O A. Ho u> 900 (claim) H, us 900 O B. Ho: p= 870 (claim) H u#870 D. Ho: us 870 OC. Họ: H= 900 H u# 900 (claim) H u> 870 (claim) O E. Ho u> 870 (claim) H us 870 OF Ho: us 900 H p> 900 (claim) (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.) O A. The critical value is O B. The critical values are t
A company claims that the mean monthly residential electricity consumption in a certain region is more than 870 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 64 residential customers has a mean monthly consumption of 900 kWh. Assume the population standard deviation is 129 kWh. At a = 0.01, can you support the claim? Complete parts (a) through (e). O A. Ho u> 900 (claim) H, us 900 O B. Ho: p= 870 (claim) H u#870 D. Ho: us 870 OC. Họ: H= 900 H u# 900 (claim) H u> 870 (claim) O E. Ho u> 870 (claim) H us 870 OF Ho: us 900 H p> 900 (claim) (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.) O A. The critical value is O B. The critical values are t
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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Transcribed Image Text:A company claims that the mean monthly residential electricity consumption in a certain region is more than 870 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 64 residential customers has a
mean monthly consumption of 900 kWh. Assume the population standard deviation is 129 kWh. At a = 0.01, can you support the claim?. Complete parts (a) through (e).
O A. Ho: H>900 (claim)
Ha: us 900
OB. Ho p= 870 (claim)
H, µ#870
O C. Ho: p= 900
D. Ho: ps 870
Ha: p 900 (claim)
H p>870 (claim)
OF Ho ps 900
O E. Ho: H>870 (claim)
Ha: us 870
H, p> 900 (claim)
(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.)
O A. The critical value is
O B. The critical values are +
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