Even within a particular chain of hotels, lodging during the summer months can vary substantially depending on the type ofroom and the amenities offered. Suppose that we randomly select 50 billing statements from each of the computerdatabases of the Hotel A, the Hotel B, and the Hotel C chains, and record the nightly room rates. The means and standarddeviations for 50 billing statements from each of the computer databases of each of the three hotel chains are given in thetable.Hotel A140Hotel B17.9Sample Average ($)Sample Standard Deviation(a) Find a 95% confidence interval for the difference in the average room rates for the Hotel A and the Hotel Bchains. (Use Hotel A - Hotel B. Round your answers to two decimal places.)$ 41.07X to $175Hotel C22.410512.6(b) Find a 99% confidence interval for the difference in the average room rates for the Hotel B and the Hotel Cchains. (Use Hotel B - Hotel C. Round your answers to two decimal places.)$to $

Answered: Image /qna-images/answer/577ab6fc-bc7f-4551-a29b-d2d4d2f30d0a.jpg

Answered: room and the amenities offered. Suppose…

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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When a person states at the outset of an experiment that a higher average score will be received by a group receiving some kind of treatment when it is compared to the mean of a group that did not receive the treatment, the need for a _________________ is apparent. a. one-tailed test b. two-tailed test c. an independent groups test d. a matched groups test
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five samples of 15 minerals are taken from a population. The sample means for hardness of the minerals are 6.5, seven, seven, 6.5, and six. The standard deviation for the mineral is .745. Find the meaning of the sample means and the standard deviation of the sample means for the hardness
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