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Question: A researcher collected data from a random sample of 25 high school freshmen and found the mean of...

A researcher collected data from a random sample of 25 high school freshmen and found the mean of the sample to be 85.40 on the Test of Critical Thinking (TCT). She also calculated the standard deviation from the sample and discovered the value was 12.30. The average score on the Test of Critical Thinking for all high school seniors in a large school district is 90.00. The researcher wants to know if the mean TCT of the 25 high school freshmen in the random sample is different from the population’s (i.e., high school seniors) TCT mean.

e.What decision should be made about the null hypothesis? In other words, should you reject or retain the null hypothesis?
f. Construct a 95% confidence interval around the sample mean of 85.40. Does this confidence interval contain the population mean of 90.00?
g. Provide a brief conclusion regarding your findings. Use your powerpoint lecture slides for writing out the interpretation of your results.
[ME: What decision should be made about the null hypothesis? In other words, should you reject or retain the null hypothesis? (10p) e. f. Construct a 95% confidence interval around the sample mean of gaps. Does this confidence interval contain the population mean of 90.00? (Extra credit:10p) Provide a brief conclusion regarding your findings. Use your powerpoint lecture slides for writing out the interpretation of your results. (10p) g.]

6. For each of the scenarios below, identify the sampling blunder, speculate about the influence of the bias, and then make a recommendation for ridding the study of the biasing influence. a. A researcher wanted to know how people in the local community felt about the use of high-stakes testing in the public schools. The researcher spent the afternoon at Wal-Mart and randomly approached 100 shoppers to ask their opinion (they all agreed to cooperate). Random selection was accomplished with the use of a random number table (the numbers determined which shopper to target, such as the 16th to exit, then the 30th to exit, then the ninth to exit, etc.). b. A researcher wanted to know how students at a university felt about mandatory fees for all students to support a child care center for students with children. The researcher set up a table near the dormitory where many different types of students came and went. Those who stopped at the table and seemed friendly were asked to complete the questionnaire. c. To study differences in occupational aspirations between Catholic high school students and public high school students, a researcher randomly sampled (using school rosters and a random number table) 200 students from the largest Catholic high school and the largest public high school. d. To learn more about teachers' feelings about their personal safety while at school, a questionnaire was printed in a nationwide subscription journal of interest to many teachers. Teachers were asked to complete the questionnaire and mail it (postage paid) to the journal headquarters for tabulation. e. To study the factors that lead teachers in general to quit the profession, a group of teachers threatening to quit was extensively interviewed. The researcher obtained the group after placing an announcement about the study on the teachers' bulletin board at a large elementary school.

Which school of modern economic thought seems

most realistic? If this aligns with our studies, did that

have any influence on your decision? If this is

different from our studies, why do you think this

school better characterizes macroeconomic behavior?

Explain why the evidence given is not enough to inductively support the conclusion in this case: “He has a high GPA. Most people who successfully apply to business school have high GPAs. So he is very likely to get into business school.”

1. School Boards throughout the province of British Columbia are being required to upgrade their buildings to withstand serious earthquakes. Does increasing the earthquake standards on school buildings necessarily make schools a better place? What are some things that are likely to be sacrificed by doing this?

1. a) Time Magazine states that the drop out rate for high school seniors is ten percent. You conduct a test to see if the drop out rate for high school seniors is actually more than ten percent.  One hundred high school seniors were randomly selected to see if they had dropped out.  The number of these high school seniors who dropped out is 15. Determine the p-value using test statistic, z=1.67.  Draw the graph. (α =0.01)

b) Time Magazine states that the drop out rate for high school seniors is ten percent. You conduct a test to see if the drop out rate for high school seniors is actually more than ten percent.  One hundred high school seniors were randomly selected to see whether they dropped out.  The number of these high school seniors who dropped out is 5.  Use the information and answer from question 1 to make a decision. What is the decision? Explain. (α = .01)   

c) State the proper conclusion for this hypothesis test

2. a) The Maryland Department of Health claims that the proportion of heroin users in Maryland that have been infected by HIV is five percent. Suppose a researcher wants to show that this claim is not true.  The researcher randomly selects 100 Maryland heroin users and finds that 80 have been infected with HIV. Determine the p-value using the test statistic, z= -2.11. Draw the graph.(α = 0.1)

b) The Maryland Department of Health claims that the proportion of heroin in Maryland that have been infected by HIV is four percent. Suppose a researcher wants to show that this claim is not true.  The researcher randomly selects 10000 Maryland heroin users and finds that 80 have been infected with HIV. Use the information and answer from question 2 to make a decision. What is the decision?  Explain. (α = 0.1)

c) State the proper conclusion for this hypothesis test

Angie’s Repair Shop does custom sewing repairs for customers, including sewing on buttons and putting in new zippers. Angie went to business school, so she knows that she needs to keep an eye on her sales trends. Results for October through December are listed below.

Type of Job      Units

                         October    November     December

Sew on buttons     250                400               500

Put in new zipper   100                125              150

   Hem pants          200                 175              200

Hem skirt               100                  80                 75

Take in waistban      50                  40                30

Let out waistband    50                  75               100

Required 1. Perform a simple gap analysis of Angie’s sales 2. Using the data in problem, perform a percentage change, or trend analysis, of Angie’s sales. Do you spot any patterns in sales?

?Suppose that you are in the fall of your senior year and are faced with the choice of either getting a job when you graduate or going to law school. Of? course, your choice is not purely financial. ? However, to make an informed decision you would like to know the financial implications of the two alternatives. ? Let's assume that your alternatives are as? follows:??

If you take the? "get a? job" route you expect to start off with a salary of $40,000 per year. There is no way to predict what will happen in the? future, your best guess is that your salary will grow at 5 percent per year until you retire in 40 years. As a law? student, you will be paying ?$25,000 per year tuition for each of the 3 years you are in graduate school. ? However, you can then expect a job with a starting salary of $70,000 per year. ? Moreover, you expect your salary to grow by 7 percent per year until you retire 35 years later.???Clearly, your total expected lifetime salary will be higher if you become a lawyer. ? However, the additional future salary is not free. You will be paying 25,000 in tuition at the beginning of each of the 3 years of law school. In? addition, you will be giving up a little more than $126,000 in lost income over the three years of law? school: $40,000 the first? year, $42,000 the second? year, and $44,100 the third year.

a.??To start your analysis of whether to go to law? school, calculate the present value of the future earnings that you will realize by going directly to? work, assume a discount rate of 3 percent.

b.??What is the present value today of your future earnings if you decide to attend law? school, assuming a discount rate of 3 ?percent? Remember that you will be in law school for 3 years before you start to work as a lawyer. ? (Hint: assume that you are paid at the end of each year so that your first salary payment if you decide to go to law school occurs 4 years from? now.)

c.??If you pay your law school tuition at the beginning of each? year, what is the present value of your? tuition, assuming a discount rate of 3 ?percent?

Suppose that you are in the fall of your senior year and are faced with the choice of either getting a job when you graduate or going to law school. Of​ course, your choice is not purely financial. ​ However, to make an informed decision you would like to know the financial implications of the two alternatives. ​ Let's assume that your alternatives are as​ follows:  

If you take the​ "get a​ job" route you expect to start off with a salary of ​$40,000 per year. There is no way to predict what will happen in the​ future, your best guess is that your salary will grow at 5 percent per year until you retire in 40 years. As a law​ student, you will be paying ​$25,000 per year tuition for each of the 3 years you are in graduate school. ​ However, you can then expect a job with a starting salary of ​$70,000 per year. ​ Moreover, you expect your salary to grow by 7 percent per year until you retire 35 years later.   ​

Clearly, your total expected lifetime salary will be higher if you become a lawyer. ​ However, the additional future salary is not free. You will be paying ​$25,000 in tuition at the beginning of each of the 3 years of law school. In​ addition, you will be giving up a little more than ​$126,000 in lost income over the three years of law​ school:  ​$40,000 the first​ year, $ 42,000 the second​ year, and ​$44,100 the third year.

a.  To start your analysis of whether to go to law​ school, calculate the present value of the future earnings that you will realize by going directly to​ work, assume a discount rate of 3 percent.

b.  What is the present value today of your future earnings if you decide to attend law​ school, assuming a discount rate of 3 ​percent? Remember that you will be in law school for 3 years before you start to work as a lawyer. ​ (Hint: assume that you are paid at the end of each year so that your first salary payment if you decide to go to law school occurs 4 years from​ now.)

c.  If you pay your law school tuition at the beginning of each​ year, what is the present value of your​ tuition, assuming a discount rate of 3 percent?

Throughout this course, you will review scenarios involving Company A, which has been acquired by Company B. Company A was founded in 1956 in Mobile, Alabama. The average age of its workforce is 57 and it is comprised of 40% Caucasian and 85% male. Company B was founded in 1997 in San Francisco, California. The average age of its workforce is 35 and it is comprised of 45% Caucasian and 50% male.

These two companies have been staunch competitors in the marketplace for several years and the employees of Company A are resentful of integrating with their former rival. There are many strategic and ethical challenges involved in this acquisition. A few of the goals of the acquisition project are listed below:

Managing the Communication and Information Sharing:

The company wants to keep employees informed of how the acquisition will impact them.

The company wants to be sure that they provide enough information to satisfy the employees, but not provide so much that the employees feel overwhelmed.

The company wants to be sure that the timing of the communication matches their execution of the changes within the two organizations.

Managing the Consolidation and Changes:

There is no doubt that there will be layoffs as a result of the acquisition. The company wants to do what is best for the acquisition in a way that inflicts the least amount of harm to the existing employees.

The company wants to make the decisions about who to layoff in the fairest way possible.

The company wants to try and limit exposure to potential discrimination (age and gender) stemming from the layoffs.

Managing the Relocations of Some the Employees:

Another impact of acquisitions is that employees may be asked to relocate in order to maintain employment in the newly formed organization.

The company wants to manage the expenses and potential disruption with the relocations.

The company wants to assess relocations verses hiring new employees locally.

Let us look at the role and responsibilities of HR managers regarding managing the company’s goals related to the recent acquisition.

Instructions:

You have a wide variety of employees encompassing different ages, genders, and ethnic backgrounds represented in these two companies. As a Strategic HR Director, your goal is to create a workforce that will effectively move the newly formed company forward.

Now, address the following issues:

Identify all of the information you would need to effectively manage the three goals above.

Identify the challenges and potential issues related to implementing the three goals above.

Develop recommendations for strategies to address these challenges and help the newly formed company meet its goals.