Assume you have made it to the second interview for a Human Resources Analyst position at a private company. Your interviewer wraps up the interview with the following:

“We are interested in increasing employee retention rates. Currently we are experiencing high rates of employee turnover in some of our departments and divisions. As the potential newest member of our human resources research team, we want to be sure you can meaningfully contribute to our research projects right away. Therefore, we would like you to design a project which will allow us to address the following research questions;

-Why are employees leaving the company?

-What can we do to retain a higher percentage of employees?

What is required is you to provide answers that will demonstrate that you have the skills necessary to construct a research project which can address these issues. A single project is needed to address both research questions. In designing your project, you to explicitly provide the following with valid explanations:

1. The unit of analysis,   (2mks)
2. The population,      (2mks)
3. The data collection method you will use and an explanation for why it is the appropriate data collection method, (6mks)
4. The technique you will use to generate the units to study,   (4mks)
5. A brief discussion of the major independent variables and the dependent variables (here there is no need to create actual measures, we just want to see if you can identify the primary variables before beginning the project). (6mks)

If there is no seasonal effect on human births, one would expect equal numbers of children to be born in each season (winter, spring, summer, and fall). A student takes a census of her statistics class and finds that of the 120 students in the class, 26 were born in winter, 37 in spring, 31in summer, and 26 in fall. She wonders if the excess in the spring is an indication that births are not uniform throughout the year.

a.what is the expected number of births in each season if there is no "seasonal effect" on births?

b. Compute the x²-statistic

c. How many degrees of freedom does the x² -statistic have?

According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 25 minutes.

a. If the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be?
enter the lower limit for the interval where 68% of the values would fall  to enter the upper limit for the interval where 68% of the values would fall   

b. If the distribution of time spent on the job is approximately bell shaped, between what two times would 95% of the figures be?
enter the lower limit for the interval where 95% of the values would fall  to enter the upper limit for the interval where 95% of the values would fall   

c. If the distribution of time spent on the job is approximately bell shaped, between what two times would 99.7% of the figures be?
enter the lower limit for the interval where 99.7% of the values would fall  to enter the upper limit for the interval where 99.7% of the values would fall   

d. If the shape of the distribution of times is unknown, approximately what percentage of the times would be between 357 and 481 minutes?
enter percentages rounded to 1 decimal place % (Round the intermediate values to 3 decimal places. Round your answer to 1 decimal place.)

e. Suppose a worker spent 400 minutes on the job. What would that worker’s z score be, and what would it tell the researcher?
z score = enter the z score rounded to 3 decimal places  (Round your answer to 3 decimal places.)

This worker is in the lower half of workers but within select the distance from the mean          standard deviation of the mean.

A researcher conducted a test to learn the effect of lead levels in human bodies. He collected the IQ scores for a random sample of subjects with low lead levels in their blood and another random sample of subjects with high lead levels in their blood. The summary of finding is listed below. Use a 0.05 significance level to test the claim that the mean IQ score of people with low lead levels is higher than the mean IQ score of people with high lead levels.

We do not know the values of the population standard deviations.

1. Write the hypotheses in symbolic form, determine if the test is right-tailed, left-tailed, or two tailed and explain why.

2. Calculate the critical value, the test statistic, and p-value. Show calculations below.

3. Make a decision about the null hypothesis and explain your reasoning, then make a conclusion about the claim in nontechnical terms.

Select all true statements.

In regards to human research (IRB). In your opinion do you think that there may be excessive controls in place over research. We are all aware of atrocities such as the Tuskegee experiment and the MK ultra projects that performed research on unknowing people. But in those instances, where full disclosure and acceptance by the participants has been received. Is there truly a need in your opinion for all the red tape?

The World Bank and United Nations often use the Human Development Index as a measure of economic performance. This is a number constructed using the Gross Domestic Product Per Capita, the literacy rate (as a measure of education in society) and the life expectancy (as a measure of the health of people in a society).

This is a better measure of country performance, especially in countries with high levels of income inequality. Explain how this is a construct and likely to better reflection of economic performance.

Discuss the roles of maturation and learning in human development

Discuss the ways that views about childhood have changed over time as a result of historical and cultural factors.

Discuss behaviorism in terms of the nature vs. nurture issue and the activity vs. passivity issue.

Discuss Bronfenbrenner’s ecological systems theory and describe the levels and types of environmental effects that might influence a child’s development.

Psychologists have described the human nervous system as the communication and control center for the body. The nervous system allows us to take in information from the environment, communicate the information to different parts of the body, and coordinate the body's response. The nervous system itself is made up of neurons, or nerve cells, that communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the nervous system. Think about a simple action you do every day, like answering your phone. When you perform this routine act, what are the individual neurons in your nervous system doing to make it possible?

In a multi-paragraph essay, explain how the activity of individual neurons enables you to perform a simple action like answering your phone. Be sure to describe the main parts of a neuron, explain the unique function of each part, and describe how neurons use electrochemical signals for neurotransmission. Include details from class materials, readings, and research on the nervous system to support your discussion.