Qnt 561 Week 1

Week One Homework Anita Chavez QNT/561 - APPLIED BUSINESS look into & STATISTICS defect 7, carbon2 ABDELMAGEAD ELBIALI Week One Homework doubts (answers are all(prenominal) infra): Chapter 3 Question 80: Creek Ratz is a very(prenominal) popular eatery located along the coast of northern Florida. They give ear a variety of steak and seafood dinners. During the summer beach season, they do not busy reservations or accept call ahead seating. charge of the eating house is concerned with the time a admirer must depend before being seated for dinner. Listed below is the wait time, in minutes, for the 25 tables seated move Saturday night. [pic] a. apologize why the generation are a universe. This is a population because we are considering all the 25 tables seated Sunday ngiht. b. bechance the mean and normal of the times. Mean =1021 / 25 = 40.84. Median 39 (middle point) c. Find the arena and the standard deviation of the times. Range = slime - min = 67 - 23 = 42 POP STD DEV = ? (?(x - mean) 2 / (n-1)) POP STD DEV = 14.85 Chapter 3 Question 82. The avocation frequency diffusion reports the electricity cost for a savor of 50 deuce bedroom apartments in Albuquerque, New Mexico during the month of May last year.

[pic] |Electricity Cost |Frequency | middle |fM |(M-X) |(M-X)^2 |f(M-X)^2 | |$80 up to $100 |  |3 |90 |270 |-51.2 |2621.44 | ! a. prognosticate the mean cost. Mean = [(3*90)+(8*110)+(12*130)+(16*150)+(7*170)+(4*190)]/(50) = 141.2 b. Estimate the standard deviation. STD DEV = 26.236 c. engross the Empirical Rule to estimate the similitude of costs at heart two standard deviations of the mean. What are these limits? X=141.2-2(26.236) = 87.728 X=141.2+-2(26.25) = 192.672 Chapter 3 Question 87. Refer to the Real res publica data, which reports information on homes sold in the Denver,...If you want to drop dead a full essay, order it on our website: OrderCustomPaper.com

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