In the year 2000, the Chinese economy’s growth was not as fast as the government expected. The Chinese government prolonged the Labour Day vacation (in May) to 7 days so that people could spend more.

a. Explain this decision, using the model of aggregate demand and aggregate supply.

b. Why did the Chinese government not wait until the economy adjusted back to its expected long-run position of high economic growth?

2. In a survey of 2000 students, 1638 of them thought that the prices in the school cafeteria were too high.

2a. Find a point estimate for the proportion of the school that thinks the prices in the school cafeteria are too high.

2b. Which requirement might not be met here?

2c. Find a 90% confidence interval for the proportion of the school that thinks the prices in the school cafeteria are too high.

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1400 kg , is going from north to south at 14.0 m/s . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 60.0 ∘ south of east from the point of impact. How fast were the enmeshed cars moving just after the collision? How fast was car A going just before the collision?

The heights of 2000 students are normally distributed with a mean of 165.5 centimeters and a standard deviation of 7.1 centimeters. Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would be expected to have heights:

(a) less than 151.0 centimeters?

(b) Between 163.5 and 173.0 centimeters inclusive?

(c) Equal to 168.0 centimeters?

(d) Greater than or equal to 182.0 centimeters?

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1300 kg , is going from north to south at 17.0 m/s . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 65.0 ∘ south of east from the point of impact.

Part A: How fast were the enmeshed cars moving just after the collision?

v=_____________m/s

Part B: How fast was car AA going just before the collision?

Va=_____________m/s

The demand curve for turnip can be represented by the following equation: ? = 2000 − 400? There are only two producers and the marginal cost to produce a turnip is $2 (There is no fixed cost). If the capacity of each firm is 600 output, calculate the price range of turnip under the Bertrand-Edgeworth Model.

DROP DATABASE class;CREATE DATABASE class;Use class;drop table if exists Class;drop table if exists Student;CREATE TABLE Class (CIN int PRIMARY KEY, FirstName varchar(255), LastName varchar(255), Gender varchar(1), EyeColor varchar(50), HairColor varchar(50), HeightInches int,CurrentGrade varchar(1));CREATE TABLE Student (SSN int PRIMARY KEY,FirstName varchar(255),LastName varchar(255), Age int,BirthMonth varchar(255),HeightInches int,Address varchar(255),City varchar(255),PhoneNumber varchar(12),Email varchar(255),FavColor varchar(255),FavNumber int);INSERT INTO Class VALUES(1, "David", "San", "M", "BRN", "BLK", 72, "-");INSERT INTO Class VALUES(2, "Jeff", "Gonzales", "M", "BRN", "BLK", 68, "B");INSERT INTO Class VALUES(3, "Anna", "Grayson", "F", "BRN", "BRN", 62, "A");INSERT INTO Class VALUES(4, "Kathryn", "Moloney", "F", "GRN", "BLK", 68, "B");INSERT INTO Class VALUES(5, "Randy", "Bernard", "M", "GRN", "BRN", 69, "A");INSERT INTO Class VALUES(6, "Andy", "Lam", "M", "BRN", "BLK", 59, "C");INSERT INTO Class VALUES(7, "Makoto", "Yuki", "F", "BRN", "BRN", 61, "A");INSERT INTO Class VALUES(8, "Pranil", "Watakana", "M", "BRN", "BLK", 63, "D");INSERT INTO Class VALUES(9, "Pierce", "Santos", "M", "BRN", "BLK", 74, "B");INSERT INTO Class VALUES(10, "Soliel", "Estrada", "F", "BRN", "BLU", 66, "B");INSERT INTO Class VALUES(11, "Jeff", "Bezos", "M", "BRN", "BRN", 65, "B");INSERT INTO Class VALUES(12, "Andy", "Chen", "M", "BRN", "BLK", 69, "A");INSERT INTO Class VALUES(13, "Makoto", "Amagi", "F", "BRN", "BRN", 64, "C");INSERT INTO Student VALUES(1, "David", "San", 22, "March", 72, "1234", "Flowerville", "231-246-4361", "[email protected]", "Blue", 7);INSERT INTO Student VALUES(2, "Randy", "Bernard", 21, "February", 69, "7123", "Rossette Park", "634-124-7452", "[email protected]", "Green", 12);INSERT INTO Student VALUES(3, "Andy", "Lam", 24, "December", 59, "9072", "Jefferson", "124-564-6354", "[email protected]", "Grey", 32);INSERT INTO Student VALUES(4, "Pranil", "Watakana", 23, "February", 63, "2146", "Rossette Park", "543-325-3521", "[email protected]", "Grey", 3);INSERT INTO Student VALUES(5, "Jeff", "Bezos", 22, "April", 65, "6312", "Grey Valley", "351-532-6439", "[email protected]", "Yellow", 0);INSERT INTO Student VALUES(6, "Makoto", "Amagi", 21, "September", 64, "39857", "Flowerville", "314-352-5321", "[email protected]", "Black", 3);

INSERT INTO Student VALUES(7, "Jeff", "Gonzales", 20, "October", 68, "4361", "Flowerville", "231-342-5467", "[email protected]", "Blue", 21);INSERT INTO Student VALUES(8, "Anna", "Grayson", 21, "January", 62, "6543", "Rossette Park", "634-423-5763", "[email protected]", "Green", 12);INSERT INTO Student VALUES(9, "Kathryn", "Moloney", 24, "May", 68, "5437", "Jefferson", "124-684-4131", "[email protected]", "Grey", 3);INSERT INTO Student VALUES(10, "Makoto", "Yuki", 19, "April", 61, "75632", "Rossette Park", "543-354-6421", "[email protected]", "Grey", 7);INSERT INTO Student VALUES(11, "Pierce", "Santos", 21, "January", 74, "3543", "GreyValley", "351-542-7541", "[email protected]", "Yellow", 10);INSERT INTO Student VALUES(12, "Soliel", "Estrada", 20, "June", 66, "3754", "Flowerville", "314-325-6543", "[email protected]", "Black", 5);INSERT INTO Student VALUES(13, "Andy", "Chen", 22, "September", 69, "3865", "Flowerville", "314-231-4233", "[email protected]", "Black", 3);

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1. Assign grades for students who lived in Rossette Park to be a B
2. Add another table for students who had an altered grade (in this case students who lived in Rossette Park)
3. Add the CIN, FirstName, LastName, Gender, Address, City, and Email of the students who had an altered grade to the table
4. Remove students from the student table who live in Rossette Park
5. Join all 3 tables and display the Names, Gender, and City of the students (Going to need to use ON)

Use
SET SQL_SAFE_UPDATES = 0;
To disable Safe Mode if prompted.

Not sure where to begin, as my instructor taught the theory but never any live coding session.