1. When Air Canada emerged from bankruptcy protection in 2004, its top management decided to replace some of its older planes with new ones. In particular, several relatively small Embraer and Bombardier planes (with fewer than 90 seats) and several large Boeing 777 and 787 (with more than 200 seats) were ordered. These are much fuel efficient than the planes they replace.

  However, Air Canada operations are still not as low as WestJet’s. An available Seat Mile costs Air Canada 16-17¢ whereas it costs WestJet 11-12¢. Recall that WestJet is non-unionized, runs only one type of plane (Boeing 737 which seats 100-150 passengers), and is financially stronger.

1. Discuss five pros and cons of Air Canada’s decision.
2. Identify five current trends in operation management and discuss how Air Canada can use them to improve their operations.

You travel to one of the shops where you park your car beside a Ferrari Testa Rossa in the store car park, and
enter the store to find an immaculately dressed lady who runs the store on her own. The dresses sold in the
store retail for several thousand dollars an item. On chatting to the lady, you discover the Ferrari is her
“getting to work” car. You note that there is no cash register and are told that given the value of the dresses,
only a few sales a day are processed, and these are either by EFTPOS using a single machine, or cash, which
is immediately banked. Customers are given handwritten detailed receipts, which do not carry a serial
number.
Required:
Given the above situation critically analyse the sales process and describe in detail what management
assertions may be at risk relative to sales. Give full reasons for your choices. In your answer explain what
management assertions are.

Write a Java program (single file/class) whose filename must be Numbers.java.

The program reads a list of integers from use input and has the following methods:

1. min - Finds the smallest integer in the list.

2. max- Finds the largest integer in the list.

3. average - Computes the average of all the numbers.

4. main - method prompts the user for the inputs and ends when the user enter Q or q and then neatly outputs the entire list of entries on one line and then the minimum, maximum, and average. values on separate lines with nice readable labels.

5. Make sure your code runs without error and handles bad inputs and 0 and negative numbers are valid.

6. Followed instructions and include to get full credit file must include your name, date, class and Javadoc code comments for each and every method as well as logic comments.

Processor/CPU Management I Five processes, J1, J2, J3, J4 and J5. arrive in the Ready Queue in sequence, one second apart. Each job takes 1 millisecond to load into memory. Each job will take 10, 2, 3, 1, 5 seconds to run respectively.

II In a single user dedicated system such as a personal computer, it is possible for the user to detect if a program is in an infinite loop and stop it manually. Another solution is for the system to terminate an infinite loop automatically. But there are legitimate situations where a program runs for a very long time. Can you propose a way to terminate a program in an infinite loop automatically? Maybe not detecting all of them but at least some of them? Hint: Discuss the potential for those programs that 1. Consume lots of resources (what kind of resources?) in an infinite loop. What happens when resources are consumed ? and 2. Consume no resource except looping needlessly.

Write a Java program (single file/class) whose filename must be Numbers.java. The program reads a list of integers from use input and has the following methods: 1. min - Finds the smallest integer in the list. 2. max- Finds the largest integer in the list. 3. average - Computes the average of all the numbers. 4. main - method prompts the user for the inputs and ends when the user enter Q or q and then neatly outputs the entire list of entries on one line and then the minimum, maximum, and average. values on separate lines with nice readable labels. 5. Make sure your code runs without error and handles bad inputs and 0 and negative numbers are valid. 6. Followed instructions and include to get full credit file must include your name, date, class and Javadoc code comments for each and every method as well as logic comments.m

Match a student number: Write a function MatchStudentNumber that takes a student number from the StudentNumber column in the reference table and determine if there is a match with a student number from the StudentNumber column in the second table. The output is a logical flag that is true if at least one match was found, and integer array that points to rows in table where a match occurred. Note that the function should find all matches.

function [iflag, matchPosition] =MatchStudentNumber(studentnumber, tableToFindRecord)

% Inputs: studentnumber: studentname from StudentNumber column in the reference table

% tableToFindRecord: table of any size

% Outputs: iflag: logical flag that is true if at least one match was found, and

% matchPosition: integer array that points to rows in table where matches occurred.

%MATLAB

end

Two data sets are given below, each representing times (in minutes) to complete a given task for two different samples of students.

Data Set A: 3.1, 4.7, 7.3, 8.1, 8.1, 8.7, 8.8, 9.1, 9.1, 9.2

Data Set B: 5.2, 5.6, 5.8, 6.9, 7.0, 7.7, 7.9, 8.5, 8.8, 12.5

Complete the back-to-back stem plot for data set B by adding the numbers that belong in each class below, using a class width of 1.  Do not enter spaces between the numbers. If a class does not contain anything, then write the word "empty". Key: 3|1 = 3.1 minutes

5 |__________________________(Blank #1)

6 |__________________________(Blank #2)

7 |__________________________(Blank #3)

8 |__________________________(Blank #4)

9 |__________________________(Blank #5)

10|__________________________(Blank #6)

11|__________________________(Blank #7)

12|__________________________(Blank #8)

Blank #9: For both data sets, the mean is approximately 7.6 minutes and the standard deviation is approximately 2.0 minutes. The mean and standard deviation are not the best to use in comparing centers and spreads of these distributions because they are ______________ in shape.

Blank #10: Find the median and IQR for data set A, rounding to one decimal place if needed. Report your answer as median,IQR with no extra spaces or units.

Blank #11: Find the median and IQR for data set B, rounding to one decimal place if needed. Report your answer as median,IQR with no extra spaces or units.

Question 2 options:

Consider an LB broth flask into which two E. coli strains are inoculated. Strain "A" is wild-type, with g = 22 min at 37oC, and 45 min at 27oC. Strain "B" has a temperature-sensitive mutation, such that g = 52 min at 37oC, but at 27oC g = 44 min.We inoculate equal amounts of cells (1 ml of each starter culture whose population is 1 x 106 cfu/ml) into each of two separate 1 liter volumes of LB broth at time = 0. One of the flasks is incubated at 37oC, one at 27oC.Assuming constant exponential growth (i.e. no lag phase, and no exhaustion of nutrients), answer each of these questions:

1) After 6 hours of growth, what is the final concentration of each strain in each flask?

2) What fraction of the total population is Strain A and Strain B in each flask?

Jack holds a portfolio with the following securities:

Security Investment Return

Stock A 723,653 -9.7%

Stock B 911,527 11.3%

Stock C 219,146 9.1%

Calculate the expected return of portfolio. Round the answers to two decimal places in percentage form.

Genetic Insights Co. purchases an asset for $19,779. This asset qualifies as a seven-year recovery asset under MACRS. The seven-year fixed depreciation percentages for years 1,2,3,4,5, and 6 are 14.29%, 24.49%, 17.49%, 12.49%, 8.93% and 8.93%, respectively. Genetic Insights has a tax rate of 30%. The asset is sold at the end of six years for $4,546.

Calculate after-tax cash flow at disposal. Round the answer to two decimals.

A chef must decide how many chocolate lava cakes to prepare for the upcoming Mother's Day Dinner special. The chef can either prepare 50, 100, or 150 lava cakes. Assume that demand for the surf and turf can be 50, 100, or 150.

Each dish costs $5 to make and is priced at for $7 on the menu. Unsold cakes are donated to a nearby charity center. Assume that there is no opportunity cost for lost sales.

1. Which alternative should be chosen based on the maximax criterion?

2. Which alternative should be chosen based on the minimax regret criterion?

3. What is the best alternative using the EMV criterion? Given: The cafe owner told the chef that in the past years, the probability that clients will order 50 cakes is 0.30; the probability they will order 100 cakes is 0.50, and the probability that they will order 150 cakes is 0.20.