Suppose two independent random samples of sizes n1 = 9 and n2 = 7 that have been taken from two normally distributed populations having variances σ12 and σ22 give sample variances of s12 = 94 and s22 = 13. (a) Test H0: σ12 = σ22 versus Ha: σ12 ≠ σ22 with σ = .05. What do you conclude? (Round your answers to 2 decimal places.) F = 7.231 F.025 = H0:σ12 = σ22 (b) Test H0: σ12 < σ22versus Ha: σ12 > σ22 with σ = .05. What do you conclude? (Round your answers to 2 decimal places.) F = 4.147 F.05 = H0: σ12 < σ22

When solid sodium bisulfate is added to a solution of sodium bisulfate and thymol blue indicator, which way would the equilibrium shift?

Shift toward the reactants

Shift toward the products

No shift as it is in equilibrium

None of the above

Is the disassociation of magnesium hydroxide to magnesium ion and the hydroxide ion exothermic or endothermic?

exothermic

endothermic

need more information

heat was neither absorbed nor released

Which way would the equilibrium shift when hydrochloric acid is added to mixutre that contains sodium hydroxide, phenolphthalein, and magnesium chloride?

Shift toward the reactants

Shift toward the products

No shift as it is in equilibrium

None of the above

If heat is absorbed during the course of a reaction that reaction is said to be endothermic. In an endothermic reaction heat is a?

Product

Reactant

Neither

Both

Climbing Stairs

Bibi climbs stairs of a multi-leveled building. Every time Bibi climbs a set of stairs, she counts the steps starting from 1 to the number of steps in that particular set of stairs while climbing the stairs. For example if she climbs two set of stairs, the first containing 5 steps and the second containing 3 steps, she will say 1, 2, 3, 4, 5, 1, 2, 3 and the total number of steps would be 8. Find the number of steps that Bibi climbed in each set of steps.

Format Input:

The first line of the input contains an integer N, the number of numbers Bibi said. The second line of the input contains N integers Ai , the i-th number Bibi said. The given sequence of Ai will be a valid sequence, that means the whole input can be cut into sequences of 1, 2, . . . , X, where X is the number of steps in a set of stairs.

Format Output:

Print the number of steps that Bibi climbed for each set of steps, in the order of the input sequence, separated by single spaces. There is no leading and trailing spaces in the output.

Constraints

• 1 ≤ N ≤ 1, 000

• 1 ≤ Ai ≤ 1, 000

• The given sequence of Ai will be a valid sequence, that means the whole input can be cut into sequences of 1, 2, . . . , X, where X is the number of steps in a set of stairs.

Sample Input 1 (standard input):

8

1 2 3 4 5 1 2 3

Sample Output 1 (standard output):

5 3

Sample Input 2 (standard input):

10

1 2 1 1 2 3 4 1 2 3

Sample Output 2 (standard output):

2 1 4 3

Sample Input 3 (standard input):

5

1 2 3 4 5

Sample Output 3 (standard output):

5

Note The first sample is the example from the problem description.

In the second sample:

The first set of stairs have 2 steps, current sequence is ”1, 2”

second set have 1 steps, current sequence is ”1, 2, 1”

third set have 4 steps, current sequence is ”1, 2, 1, 1, 2, 3, 4”

last set have 3 steps, current sequence is ”1, 2, 1, 1, 2, 3, 4, 1, 2, 3”, just like the input

In the third sample, there is only one set of stairs which contains 5 steps.

*Note: Use C language and long long int (must be the same as the constraint)

You have been asked to develop your school’s first student code of ethics. How might you approach this task? Who might you try to involve? What might be some key tenets of such a code of ethics? Write a one-page paper and discuss other codes of ethics from three universities. Also discuss what items you would include in your set of guidelines and why you chose them. Include 3 references

Research the internet and or/other sources and Identify the prominent results that two organizations sustained from implementing a strategy that tied incentives directly to strategy execution. Explain why you believe they were able to do so. Note: Please be sure to reference chapter concepts as part of your response.

What are the steps in conducting a systematic review of the literature?

can you please provide a reasoning and decision making scenario. Can you please include all the steps and explanations for every step please.

Create a SavingsAccount class to store data of savers (account holders). Your class should match the following specifications.
1. Each instance of the class contains a private data member savingsBalance indicating the amount the saver currently has on deposit, saver’s name, saver’s CNIC, account number (this has to be unique) and a member to store saver status (if savingsBalance > 10000 then status changes to gold otherwise silver).
2. Class also has a data member annualInterestRate to store the annual interest rate which will be the same for all the savers.
3. Implement a default constructor with minimum savingsBalance of 100, and other fields as well. Also create a parameterized constructor if a customer wants to open an account with a different starting balance.
4. Provide member function calculateMonthlyInterest that calculates the monthly interest by multiplying the savingsBalance by annualInterestRate divided by 12; this interest should be added to savingsBalance.
5. Provide a recursive member function turnInToGold that returns the number of months a saver need to become gold member
6. Provide a member function modifyInterestRate that sets the annualInterestRate to a new value.
7. Provide a function that returns the total number of account holders with the bank.
8. Write main() to test class SavingsAccount . Instantiate two different objects of class SavingsAccount, s1 and s2, with balances of $2000.00 and $3000.00, respectively. Set the annualInterestRate to 3 percent. Then calculate the monthly interest and print the new balances for each of the savers. Then set the annualInterestRate to 4 percent, calculate the next Month’s interest and print the new balances for each of the savers. Also print the months it will take for both to become gold savers of bank.

Write a Java program which takes a String representing an arithmetic expression as an input and displays whether or not the expression is balanced. If the expression is not balanced (i.e. the wrong # of parentheses or in the wrong order) it will display an error message. For Example: Input an expression: ( ( 2 + 4 ) * 2 ) Expression is balanced Input an expression: ( 5 * 7 – 6 ) ) Error: Expression is not balanced.... Implement a stack calculator using both a numbers and operations stack. Be sure to check that the expression is balanced before running it through the calculator.

What is the third variable problem? What type of research does it occur in? How can you control for it?

The theme of individual differences has been prominent throughout this book. However, some researchers argue that individual differences increase during our lives.

What are the trends with respect to the gender ratio for psychology Ph.D. degrees? What is the current gender ratio for the psychology faculty and for psychology majors at your own college or university? Why might the changing gender ratio help the women’s movement??

Given all the negative effects of bitcoin, why are many central bankers contemplating the release of their own digital currency? What are the possible benefits?

Do you agree that a certain degree of stress is necessary to induce high energy and motivation?

Public Speaking

•Preparation:

1.What do you do to prepare for your speeches?

2.What might you have done differently in order to be more effective?

•Introduction:

1.How effective were your attention-getting strategies?

2.How well did you relate your topics to your audience?

•Body:

1.Were you clear in your themes?

2.Overall, were your ideas developed thoroughly? Explain when and why.

3.How would you revise your speech so that you could improve it?

•Conclusion:

1.Overall, did you leave your audience with lasting impressions?

•Delivery:

1.What were your strengths?

2.What do you need to improve?

What are the four feedback levels in the Hattie text and how do they each apply to formative assessment?