A Deloitte employment survey asked a sample of human resource executives how their company planned to change its workforce over the next 12 months. A categorical response variable showed three options: the company plans to hire and add to the number of employees, the company plans no change in the number of employees, or the company plans to lay off and reduce the number of employees. Another categorical variable indicated if the company was private or public. Sample data for 180 companies are summarized as follows.

Find the value of the test statistic. (Round your answer to three decimal places.)

Find the p-value. (Round your answer to four decimal places.)

p-value =

One field of economics, referred to as human capital, has often held that a person’s income (I) could be determined on the basis of his or her (1) education level (E), (2) training (T), and (3) the person’s general level of health (H). Using 25 employees at a small textile firm in North Carolina, a researcher regressed income on the other three variables and got the following results.

I = 27.2 + 3.7 E + 1.7 T + 3.05 H

(3.70) (6.21) (4.32) (6.79)

with r-squared = 0.67 and the calculated F statistic equal to 5.97. Beneath each coefficient is the calculated t statistic.

I is measured in units of $1000, E and T are measured in years, and H is measured in terms of a scaled index of one’s health: the higher the index, the better the level of health.

a. If one’s education increases by two years, what happens to his or her income?

b. Is the model significant at the 5% level? Show all parts of any test.

c. Determine which variable(s) is (are) significant at the 10 percent level. Show all parts of any test.

d. What is the value of the adjusted coefficient of determination?

Students are to complete Module 4, Human Resources and Capacity (Scenario) in Practice Operations. Based on their observations in this scenario, and upon a careful review of the available literature, the student is to consider him - or herself to be the Production Manager of Kibby and Strand, the company in the scenario.

The CEO is thinking of expanding Kibby and Strand, and you are tasked to create a data collection plan and measurement criteria for how production output and product quality will be measured. Create your collection plan and output measurement criteria assuming the current production capacity in the simulation scenario will be doubled.

In addition, the HR manager asks for a list of qualifications and skill sets required for production shift managers to staff the expansion. Create your job ad to include qualifications and desired skill sets.

The student is to create the data collection plan, measurement criteria, job qualifications list, and staffing plan based on knowledge learned in the scenario, and post it in the discussion

2. Adapted from Exercise 3.19 in the textbook. The length of human pregnancies from conception to birth varies according to a distribution that is approximately normal with mean 266 days and standard deviation 16 days.

(a) Between what range of days do about 95% of pregnancies last?

(b) What proportion of pregnancies last more than 170 days?

(c) What proportion of pregnancies last less than 245 days? 1

(d) What proportion of pregnancies last between 245 and 280 days?

(e) A pregnancy that lasts an amount of time 0.3 standard deviations less than the means lasted for how many days?

Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase in absenteeism, which he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the last six months. Below are the results.

At the .05 significance level, can he conclude that the number of absences has declined? Estimate the p-value.

a. State the decision rule for 0.1 significance level: H₀ : μ_d≤ 0; H₁ : μ_d > 0. (Round the final answer to 3 decimal places.)

Reject H₀ if t > _________

b. Compute the value of the test statistic. (Round the final answer to 3 decimal places.)

Value of the test statistic: ____________

c. Estimate the p-value? (Round the final answer to 4 decimal places.)

p-value: ____________-

d. What is your decision regarding H₀?

At the 0.05 significance level,  (reject or do not reject?)  H₀.

Length (in days) of human pregnancies is a normal random variable (X) with mean 266, standard deviation 16.

(It would be useful to sketch this normal distribution yourself, marking its mean and the values that are 1, 2, and 3 standard deviations below and above the mean. Click to compare your figure to ours)

The probability is 0.95 that a pregnancy will last between ?218234250266282298 and ?218234250266282298 days.

The shortest 16% of pregnancies last less than ?218,234,250,266,282,298 days.

The probability of a pregnancy lasting longer than 314 days is Select an answer0.00150.0250.160.680.950.997 .

There is a probability of 0.5 that a pregnancy will last longer than ?218,234,250,266,282,298 days.

Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase in absenteeism, which he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the last six months. Below are the results.

At the .05 significance level, can he conclude that the number of absences has declined? Estimate the p-value.

a. State the decision rule for 0.1 significance level: H₀ : μ_d≤ 0; H₁ : μ_d > 0. (Round the final answer to 3 decimal places.)

Reject H₀ if t > ???

b. Compute the value of the test statistic. (Round the final answer to 3 decimal places.)

Value of the test statistic ???   

c. Estimate the p-value? (Round the final answer to 4 decimal places.)

???

One of the week’s themes has been the human tendency to blindly follow rather than to resist injustice. Considering the world in the twenty-first century, what is a recent or current example of injustice and in what ways have we either failed to question, critique, challenge, and resist that injustice, or alternately, in what ways has active questioning, challenging, critiquing, and resisting rectified an injustice? Be specific and use as much detail as possible to explain your choice.

MULTIPLE CHOICE QUESTIONS

QUESTION 1

1. Most of the volume of normal human blood is composed of:

   	1.	red cells
   	2.	hemoglobin
   	3.	plasma
   	4.	white cells

QUESTION 2

1. Also called white blood cells

   	1.	Thrombocytes
   	2.	Erythrocytes
   	3.	Platelets
   	4.	Leukocytes

QUESTION 3

1. Platelets are formed from what type of cell?

   	1.	Melanocytes
   	2.	Macrophages
   	3.	Astrocytes
   	4.	Megakaryocytes

QUESTION 4

1. Which of the following statements is true regarding the ABO blood system?

   	1.	People who have the A antigen normally would not produce the anti-A antibody.
   	2.	People who are type AB normally produce both anti-A and anti-B antibodies
   	3.	The only ABO type blood that normally does not have either A or B antigens is AB.

QUESTION 5

1. Hematopoietic organs of fetus

   	1.	Liver and spleen
   	2.	Bone marrow of flat bone
   	3.	Kidney and spleen
   	4.	Epiphyses of long bone

QUESTION 6

1. The relatively clear liquid medium which carries the other cells of blood is called:

   	1.	lipid
   	2.	antibody
   	3.	plasma

QUESTION 7

1. Which of the following statements is true about the ABO blood system?

   	1.	It was discovered in the 1950's
   	2.	It was discovered by Karl Landsteiner
   	3.	Few people are actually typed for this system because of the difficulty of the procedure and high cost.
   	4.	a and b

1 points   

QUESTION 8

1. The hormone erythropoietin stimulates red blood cell production in the red bone marrow. Where in the body is erythropoietin produced?

   	1.	Spleen
   	2.	Kidney
   	3.	Liver
   	4.	Thyroid

1 points   

QUESTION 9

1. Hematopoietic organs of adults

   	1.	Liver and spleen
   	2.	Kidney and spleen
   	3.	Epiphyses of long bone
   	4.	Bone marrow of flat bone

1 points   

QUESTION 10

1. When a fetus' blood is agglutinated by its mother's Rh antibodies, the severe anemia that results is called:     

   	1.	immunization
   	2.	ectopic pregnancy
   	3.	erythroblastosis fetalis

1 points   

QUESTION 11

1. Average value of an adult's hematocrit

   	1.	80 %
   	2.	45 %
   	3.	70%
   	4.	30%

1 points   

QUESTION 12

1. Thrombocytes are not blood cells

   True

   False

1 points   

QUESTION 13

1. Hematopoiesis

   	1.	formation and maturation of blood cells from hematopoietic stem cells
   	2.	breakdown of red blood cells
   	3.	formation of leukocytes
   	4.	color pigment of red blood cells

A Deloitte employment survey asked a sample of human resource executives how their company planned to change its workforce over the next 12 months. A categorical response variable showed three options: The company plans to hire and add to the number of employees, the company plans no change in the number of employees, or the company plans to lay off and reduce the number of employees. Another categorical variable indicated if the company was private or public. Sample data for 180 companies are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions.

a. Conduct a test of independence to determine if the employment plan for the next 12 months is independent of the type of company. At a .05 level of significance, what is your conclusion?

Compute the value of the x^2 test statistic (to 2 decimals).

(___)

The p-value is (___) (to 4 decimals).

b. Discuss any differences in the employment plans for private and public companies over the next 12 months.

(___)% (to 2 decimals) of private companies plan on adding employees.

(___)% (to 2 decimals) of public companies plan on laying off employees.