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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Question: A company conducted a survey to gather data on the ages of its employees. The collected data are as follows: 25, 28, 30, 35, 38, 40, 42, 45, 48, 50. Calculate the range, variance, and standard deviation of the ages.
TOPIC : MEASURES OF DISPERSION Please use your group data to formulate these following items. 1. Range, its meaning, and the formula. 2. Mean Deviation, its meaning, and the formula. 3. Standard Deviation, its meaning, and the formula. 4. Variance, its meaning and the formula. Picture below is the group data:
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A. What is the standard deviation of this population? (2, 3, 6, 8, 11) B. What is the standard deviation of this sample? (3, 4, 5, 7, 8, 8, 9, 12)
Independent and Dependent Samples Which of the following involve independent samples? a. Data Set 14 “Oscar Winner Age” in Appendix B includes pairs of ages of actresses and actors at the times that they won Oscars for Best Actress and Best Actor categories. The pair of ages of the winners is listed for each year, and each pair consists of ages matched according to the year that the Oscars were won. b. Data Set 15 “Presidents” in Appendix B includes heights of elected presidents along with the heights of their main opponents. The pair of heights is listed for each election. c. Data Set 26 “Cola Weights and Volumes” in Appendix B includes the volumes of the contents in 36 cans of regular Coke and the volumes of the contents in 36 cans of regular Pepsi.
Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.
Textbook: Statistics for the Behavioral SciencesGregory J. Privitera Please show your work-Concept and Application Problems (Pg.133) An expert reviews a sample of 10 scientific articles (n = 10) and records the following number of errors in each article: 2, 9, 2, 8, 2, 3, 1, 0, 5, and 7. Compute the SS, variance, and standard deviation for this sample using the definitional and computational formula.
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The ages of undergraduate students at two universities (one in the east and one in the west) are being compared. Researchers want to know if there is a difference in the mean age of students at the two universities. The population standard deviations are known. The following data shows the results of samples collected at each institution: School Location n (sample size) sample mean ( ) population standard deviation West 33 25.78 6.29 East 35 23.16 7.52 What is the value of the test statistic for the previous problem? (Enter your answer as a positive value even if you calculated a negative test statistic value i.e. if you calculated -1.311 you should enter 1.311). Round your answer to 3 decimal places.

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