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 66 residential customers has a mean monthly consumption of 880 kWh. Assume the population standard deviation is 121 kWh. At a = 0.05, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and Ha. Choose the correct answer below. B. Ho:H> 880 (claim) O A. Ho: H> 860 (claim) Hai HS 860 Ha:HS 880 O C. Ho: H5 860 Ha: H> 860 (claim) O D. Ho: H= 880 Ha: H + 880 (claim) O E. Ho: HS880 O F. Ho:H=860 (claim) Ha: H>880 (claim) Ha:H#860 ? Click to select your answer and then click Check Answer.

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 66 residential customers has a mean monthly consumption of 880 kWh. Assume the population standard deviation is 121 kWh. At a = 0.05, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and Ha. Choose the correct answer below. B. Ho:H> 880 (claim) O A. Ho: H> 860 (claim) Hai HS 860 Ha:HS 880 O C. Ho: H5 860 Ha: H> 860 (claim) O D. Ho: H= 880 Ha: H + 880 (claim) O E. Ho: HS880 O F. Ho:H=860 (claim) Ha: H>880 (claim) Ha:H#860 ? Click to select your answer and then click Check Answer.

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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You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 32 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table below. At a= 0.10, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 32 31 26 31 34 41 25 24 290 27 30 33 30 29 28 30 25 23 OD. Ho p 32 Ha p2 32 Ha p< 32 Ha us 32 (b) Use technology to find the P-value. P = (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer.
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