I'm struggling with writing null and alternative hypothesis for two populations. Can anyone please explain HOW TO write the correct Ho and Ha for the following questions? Thanks.

Examples:

1) Mean entry-level salaries for college graduates with mechanical engineering degrees and electrical engineering degrees are believed to be approximately the same. A recruiting office thinks that the mean mechanical engineering salary is actually lower than the mean electrical engineering salary. The recruiting office randomly surveys 50 entry level mechanical engineers and 60 entry level electrical engineers. Their mean salaries were $46,100 and $46,700, respectively. Their standard deviations were $3,450 and $4,210, respectively. Conduct a hypothesis test to determine if you agree that the mean entry-level mechanical engineering salary is lower than the mean entry-level electrical engineering salary.

2) A powder diet is tested on 49 people, and a liquid diet is tested on 36 different people. Of interest is whether the liquid diet yields a higher mean weight loss than the powder diet. The powder diet group had a mean weight loss of 42 pounds with a standard deviation of 12 pounds. The liquid diet group had a mean weight loss of 45 pounds with a standard deviation of 14 pounds.

3) A study is done to determine if students in the California state university system take longer to graduate, on average, than students enrolled in private universities. One hundred students from both the California state university system and private universities are surveyed. Suppose that from years of research, it is known that the population standard deviations are 1.5811 years and 1 year, respectively. The following data are collected. The California state university system students took on average 4.5 years with a standard deviation of 0.8. The private university students took on average 4.1 years with a standard deviation of 0.3.

1. Matt and Meg Comer are married and file a joint tax return. They do not have any children. Matt works as a history professor at a local university and earns a salary of $64,300. Meg works part-time at the same university. She earns $33,600 a year. The couple does not itemize deductions. Other than salary, the Comers’ only other source of income is from the disposition of various capital assets (mostly stocks). (Use the tax rate schedules,Dividends and Capital Gains Tax Rates.) (Round your final answers to the nearest whole dollar amount.) a. What is the Comers’ tax liability for 2019 if they report the following capital gains and losses for the year? Short-term capital gains $ 9,120 Short-term capital losses (2,120 ) Long-term capital gains 15,230 Long-term capital losses (6,230 )

total tax liability=__________(question 1)

2. Matt and Meg Comer are married and file a joint tax return. They do not have any children. Matt works as a history professor at a local university and earns a salary of $64,300. Meg works part-time at the same university. She earns $33,600 a year. The couple does not itemize deductions. Other than salary, the Comers’ only other source of income is from the disposition of various capital assets (mostly stocks). (Use the tax rate schedules,Dividends and Capital Gains Tax Rates.) (Round your final answers to the nearest whole dollar amount.)

b. What is the Comers’ tax liability for 2019 if they report the following capital gains and losses for the year?

total tax liability=____(question 2)

1. The provost at the University of Chicago claimed that the entering class this year is larger than the entering class from previous years but their mean SAT score is lower than previous years. He took a sample of 20 of this year’s entering students and found that their mean SAT score is 1,501 with a standard deviation of 53. The University’s record indicates that the mean SAT score for entering students from previous years is 1,520. He wants to find out if his claim is supported by the evidence at a 5% level of significance. Round final answers to two decimal places. Solutions only.

(A) The parameter the president is interested in is:
(a) the mean number of entering students to his university this year.
(b) the mean number of entering students to all U.S. universities this year.
(c) the mean SAT score of the entering students to his university this year.
(d) the mean SAT score of the entering students to all U.S. universities this year.

(e) None of the above.

(B) The population the president is interested in is:
(a) all entering students to all universities in the U.S this year.

(b) all entering students to his university this year.
(c) all SAT test centers in the U.S. this year.
(d) the SAT scores of all students entering universities in the U.S. this year.

(e) None of the above.

(F) True, False, or Uncertain: The null hypothesis would be rejected.

(G) True, False, or Uncertain: The null hypothesis would be rejected if a 10% probability of committing a Type I error is allowed.

(I) True, False, or Uncertain: The evidence proves beyond a doubt that the mean SAT score of the entering class this year is lower than previous years.

(J) True, False, or Uncertain: If these data were used to perform a two-tail test, the p-value would be 0.1254.

"Micromax Corporation a company assembling and Marketing Mobile phone, after successful operations in India during the last eight years, now plans to enter consumer electronic (say TV) hoping to create similar success stories.The company has approached you to become the CEO of this new Division. Above you is the Board of Directors and below you are the whole set of employees. How will you go about in this assignment using the concept of Leadership and Negotiation. Need answers on all below 4 parts.
List out the steps you will adopt.
What areas you will need to address
What Leadership skills and Negotiation skills you will need to demonstrate.
How will you implement this diversification strategy?"

The Government has recently launched a new and innovative transport system in the country, which is managed by the Metro Express Co Ltd. The CEO of the company is aware that a big challenge lies ahead in managing a new company and to run it efficiently. The Chairperson of the Board of Directors has stated, at the first meeting, that “Managing an organisation requires various skills and the ability to organise various resources. All these tasks must be executed with an understanding of how actions influence the organisation, both internally and externally.” Furthermore, the Board of Directors of the Metro Express Co Ltd has stressed that one of the significant influences on how an organisation is managed is the system of corporate governance.

You are requested to advise him on: (i) how to structure the corporate governance of the organisation?

Question 1 1 pts Horizontal analysis A) compares beginning and ending balances within the same accounts for the same company for a stated year. B) compares beginning and ending balances within the same accounts between two companies for a stated year. C) compares only ending balances within the same accounts for the same company for a stated year. D) compares only ending balances within the same accounts between two companies for a stated year. Flag this Question

Question 2 1 pts Vertical analysis of a balance sheet A) uses net sales as the 100% "base" and compares amounts to it. B) uses total assets as the 100% "base" and compares amounts to it. C) uses total stockholders' equity as the 100% "base" and compares amounts to it. D) cannot be done -- only the income statement can be vertically analyzed. Flag this Question

Question 3 1 pts The working capital of a corporation is calculated by subtracting current liabilities from current assets. A) The resulting number determines whether fixed assets may be depreciated for the current year. B) is expressed as a fraction (or a ratio). C) is a measurement of the company's solvency. D) is a measure of the company's profitability. Flag this Question

Question 4 1 pts The earnings per share ratio is very descriptive; it tells interested parties how much each share of outstanding stock would receive if all of the current year's earnings were distributed. A) A key point about this ratio is the earnings must be changed from accrual to cash. B) it is an important factor in determining the company's ability to borrow money through the use of long-term bonds. C) it is not shown on financial reports of publicly-held companies. D) the earnings are calculated only for the common shares outstanding. Flag this Question

Question 5 1 pts Per the regulatory pronouncements of the Sarbanes-Oxley Act of 2002, a certification as to the internal controls of a corporation being in place and functioning must be made by A) The CEO and CFO only. B) the external auditor only. C) the CEO, CFO, and external auditor. D)the SEC.

Eugenia Monroe, 30 years old, is currently employed at an IT firm where she earns $38,000 a year. She expects that her salary will grow by 3% per year. She expects to retire at age 65. She has recently inherited $75,000 and is now considering what to do with the sum. She has two options: First, she could enroll in a certification program in net work design. The program requires completing 20 Web-based courses over one year. The total cost of the program is $5,000, payable when she enrolls. She will not lose any income because she can study while working. When she obtains the certification, she can expect an increase in salary of $10,000 compared to her current job, and this differential will grow at 3% per year so long as she keeps working in that new position. Second, she could enroll for an MBA. It will be an evening program, and it will cost $25,000 per year, due at the beginning of each of her three years in school. Because it is an evening program, she will not lose any income because she can study while working. When she obtains the MBA degree, she can expect a promotion to manager and an increase in salary of $20,000 compared to her current job, and this differential will grow at 3% per year so long as she keeps working in that managerial position. Using a discount rate of 2.95%, please answer the following questions: Create worksheets in Excel showing the timelines for her two alternatives. Assume that salaries are paid only once, on January 1 of the next year. Hence, when she obtains a qualification in, say, 2018, the higher salary does not kick in until 2019. Calculate the present value of the salary differential for completing the certification program. Subtract the present value of the cost of the program to get the net present value. Calculate the present value of the salary differential for completing the MBA program. Subtract the present value of the cost of the program to get the net present value. Based on your answers above, which choice would you recommend to Eugenia Monroe?

Consider a very simple representation of the before-trade Canadian and U.S. economies. Both countries produce only automobiles and food, according to the technology represented in the following production possibility frontiers: Assuming the working populations of Canada and the US is 25 and 250 respectively.

a. Use well-labelled diagrams, show that Canada can gain from trade with the US. Carefully describe what will happen to Canadian production, employment, and wages after free trade with the US. Be careful to state your assumptions.

b. Recognizing that the above model is a simplification of the real world, analyse the likely short- and long-run employment consequences of free trade with the US on Canadian employment and wages.

c. Within four years of implementation of the Canada-US Free Trade Agreement (FTA) in 1989, employment in Canadian manufacturing dropped by 400,000. This shows that the FTA killed jobs.” True or false? Explain.

You have on your schedule to receive street light products from your regular vendor in July 2020.On the 10th June 2020, you learnt from the news that the Vendor’s warehouse has been destroyed by fire and that they may not be able to recover in the next 12 months.

What type of Risk is this? Mention 4 possible things you will do?

Give 2 examples for each of the followings Risks that may apply to your project, 1Known unknown, 2 Unknown unknowns