1. 1. A supermarket chain wanted to obtain information on the length of time (in minutes) required to service customers. They need to decide on the number of service counters needed for stores to be built in the future. To find the distribution of customer service times, a sample of 60 customers’ service times were recorded and are shown here:      

3.6        1.9        2.1        .3          .8         .2         1.0        1.4        1.8        1.6

1.4        .2         1.3        3.1        .4         2.3        1.8        4.5        .9         .7

1.6        1.9        5.2        .5          1.8        .3          1.1         .6         .7          .6

Find the mode and the 20^th percentile of the above data set.    

Design, implement, and fully test a Python3 function that converts a number to words (words_from_number(number: int)). It should expect to be passed a natural number (such as 12345) and return the corresponding words (i.e., “twelve thousand three hundred forty-five”). Since Python integers can grow arbitrarily large, your code should be flexible, handling at least 20 digits (realistically, it’s just as easy up to 30 digits). Spell everything correctly, and use correct punctuation (hyphens for forty-five and thirty-seven, no commas or plurals). You may only use built-in Python functions, not any modules or third-party libraries!

create your own haunted house 5.What does the outside of your haunted house look like? When was it built? What is its architectural style? 6.What is the history of your haunted house? What happened here? Why is it haunted? 7.Who or what haunts your haunted house? Why are they haunting it? Explain in detail using cosmological or theological information. In other words, is there a religious or philosophical reason why whoever is haunting the house cannot “move on”? 8.What can visitors expect to see/feel/hear/etc. When they visit your haunted house? Be specific here.

An engineering students designs and builds a capacitor from some scrap iron. One piece of iron is a square with side lengths of 10 cm, while the other piece is a rectangle that is 20 cm long and 10 cm wide. The student knows they can keep the plates separated by a distance of 1.2 micrometers.

a. What is the capacitance of this setup?

b. If the capacitor is fully charged using a 1.5 V battery, how much charge is built up on the plates?

c. How much energy is stored?

d. After performing the experiment, the student inserts a dielectric with a k value of 1.2. What values would this change?

One of the major concepts of Marxian Economics is the exchange value. This concept was actually also used extensively by David Ricardo and Adam Smith. Describe the way Adam Smith defines the concept, and then how David Ricardo developed it. Then describe the way Karl Marx developed it further, and how the concept is related to prices according to him. To what degree it is possible to say, Marx built upon what Ricardo wrote. To what extent Marx is different from Ricardo in his definition and use of the concept. How do you think the exchange value concept has influenced the way these three economists approach to the economic system?

Assuming Database is not providing Referential Integrity Constraints support i-e Primary key, foreign key and Unique key, your task is to design a database engine with your own built in Referential integrity rules implementation and you need that only one database connection is maintained which an application should access.

Recommend proper design pattern used for the stated problem. Give reasons for selecting that pattern, create complete class diagram for the solution. The class diagram should also show the methods of the class and all the relations a class has with other classes. Also provide complete working code of the example

Case Study: The subway is expected to run the whole length of Manhattan. It will eventually connect with the already existing subway, East Side subway. The second avenue subway will also connect with the railroad at the 125th street in the north and run to the southern side to reach the financial district. However, phase one of the project was opened for the public in January 2017. There is a plan to include 16 new underground stations in the subway. These substations will be built using tunnels and cut-and- excavations. This project will occur below and maybe in some of the highly populated urban infrastructures in the world.

Question: Design a detailed agenda for a Kick Off meeting for above case study?

1. During and after the commissioning and turn-over process, the design and construction team need to provide the owner with many important documents for the operation of the building. These include all of the following, except:

   		A list of things that the contractor secretly left out of the building to save costs.
   		Operations and maintenance manuals for installed equipment
   		Final construction drawings, typically called "As Built" drawings. These incorporate any minor changes made during construction.
   		Design calculations for building systems.
   		Warranty, test-and-balance, and inspection documents.
   		Building Information Modeling (BIM) data, if included in the contract.
   		Samples and inventories of spare parts and materials used in the construction, to facilitate repairs.