Assume that the duration of human pregnancies can be described by a Normal model with mean 267 days and standard deviation 14 days.

​a) What percentage of pregnancies should last between 272 and 284 days?

​b) At least how many days should the longest 20​%of all pregnancies​ last?

​c) Suppose a certain obstetrician is currently providing prenatal care to 60 pregnant women. Let y

represent the mean length of their pregnancies. According to the Central Limit​ Theorem, what's the distribution of this sample​ mean, y​? Specify the​ model, mean, and standard deviation.

​d) What's the probability that the mean duration of these​ patients' pregnancies will be less than 256 ​days?

Which of these effects of climate change is NOT likely to negatively impact human health?

• A. Longer summers increase the breeding season of disease vectors such as mosquitos and ticks.
• B. Deforestation and melting permafrost may bring humans into contact with novel pathogens.
• C. Hurricanes, floods, and warmer water temperatures increase our exposure to and the prevalence of waterborne bacterial diseases.
• D. All of these are likely to negatively impact human health.

Atmospheric carbon dioxide levels, while overall increasing over the past several decades, do show regular cyclic fluctuations throughout the year. In what season are CO2 levels generally the lowest?

• A. Winter
• B. Spring
• C. Summer
• D. Fall

Which of these is an inducible defense?

• A. Plants producing a toxin in response to herbivory
• B. Toxins found in the skin of poison dart frogs
• C. Insects with cryptic coloration that look like leaves
• D. Harmless species of fly mimicking the yellow-and-black color pattern of a bee
• E. All of these

In the south of France, winters are getting warmer, with fewer freezing nights. In this area, wild populations of the perennial herb Thymus vulgaris (thyme) successfully persist despite the changes. Survival of T. vulgaris has been linked to an increase in the proportion of plants that produce phenolic compounds. This is an example of ________.

• A.

  a shift in phenological patterns in T. vulgaris in response to the effects of climate change

• B.

  a shift in geographical range in T. vulgaris in response to the effects of climate change

• C.

  a change in allele frequencies in T. vulgaris in response to the effects of climate change

• D.

  the adaptation of T. vulgaris to a shift in precipitation patterns

Imagine that you are the Human Resources Director for a medical clinic. For this assignment, please design a recruiting plan for a new Registered Nurse. The plan you propose should address all of the following three elements:Propose a process for conducting a job analysis to modify the existing job description, which is included in the text as Appendix 9.1. You do not need to create a new job description, but you do need to create a list of specific steps that you would include in conducting a job analysis to improve the current job description. Formulate a plan that details how/where you would seek applicants for the new position. Create a set of at least 20 interview questions that you would use to prepare the recruiter to conduct an appropriate interview with potential candidates. Feel free to incorporate questions from this unit’s Supporting Lesson Links (“100 Potential Interview Questions”), other sources and your own creativity.

Which person is most closely associated with the study of human behavior as it pertains to the unconscious mind?

Select one:

a. Albert Bandura

b. Sigmund Freud

c. Margaret Floy Washburn

d. Ivan Pavlov

2.

The ______ perspective had its greatest influences from social anthropology.

Select one:

a. sociocultural

b. neo-behavioristic

c. psychoanalytic

d. neuroscience

3.

When a researcher says she is concerned about experimenter bias, what is she concerned about?

Select one:

a. She is concerned about influencing the behavior of the participants because she knows what condition of the study they are in.

b. She is concerned about the outcomes of the study because her next federal grant is dependent upon what happens next.

c. She is concerned about the study because the experimental group and the control group are both receiving placebo controls.

d. She is concerned about the study because the population of interest has been recruited and is the same as the sample.

4.

A psychologist who gathers data while watching managers interact with their employees is using

Select one:

a. a correlational strategy.

b. naturalistic observation.

c. the survey technique.

d. a Gallup poll.

5.

Another name for the eardrum is the

Select one:

a. tympanic membrane.

b. organ of Corti.

c. cochlear window.

d. internal auditory canal.

6.

Gender differences in emotion and social behavior tend to be

Select one:

a. larger than differences in cognitive behavior.

b. of very little significance.

c. very reliable indicators of a person's personality.

d. much smaller than other gender differences.

7.

Because of the amount of effort put forth to give birth to a child and to nurture a child after it is born, women have a higher ______ children than men.

Select one:

a. ability to educate

b. curiosity about

c. parental investment in

d. lack of desire for

8.

Which of the following statements is true regarding Sigmund Freud's theory of behavior?

Select one:

a. Environmental factors influence our behavior much more than hereditary factors.

b. Unconscious sexual and aggressive motives greatly influence our behavior.

c. The best way to raise our children is to treat them like little adults.

d. Behavior can best be analyzed by breaking the mind into its structural elements.

9.

From childhood through adulthood, the ______ increases in size and becomes larger in women than men.

Select one:

a. hypothalamus

b. hippocampus

c. amygdala

d. thalamus

10.

Recessive traits appear only when the mother's gene is ______ and the father's gene is ______.

Select one:

a. dominant; recessive

b. dominant; dominant

c. recessive; dominant

d. recessive; recessive

Using the program R, Assume that the distribution of the duration of human pregnancies can be approximated with a normal distribution with a mean of 266 days and a standard deviation of 16 days.

(a) What percentage of pregnancies should last between 260 and 280 days?

(b) Find a value x such that 10% of the pregnancies of a duration that is longer than x days.

(c) We select 500 pregnant women at random. Let N be the number of pregnancies in the sample with a duration between 260 and 280 days. Compute P(200 ? N ? 300) and P(N = 265).

(d) We select 10 pregnant women at random. What is the probability that the average duration of these 10 pregnancies will be less than 260 days?

(e) We select 60 pregnant women at random. What is the probability that the average duration of these 60 pregnancies will be less than 260 days?

(f) If the duration of a human pregnancy is not normally distributed (in fact it is highly skewed to the left), how does this impact your answers to (d) and (e)? (Explain in words. No computations are necessary for this question.)

Assume that the duration of human pregnancies can be described by a normal model with mean 266 days and standard deviation 15 days. Complete parts​ a) through​ d) below.

​a) What percentage of pregnancies should last between 265 and 270 ​days? ​% ​(Round to one decimal place as​ needed.)

​b) At least how many days should the longest 30​% of all pregnancies​ last? ​P(X greater than or equals nothing​)=0.30 ​ (Round to one decimal place as​ needed.) ​

c) Suppose a certain obstetrician is currently providing prenatal care to 30 pregnant women. Let (y overbar) represent the mean length of their pregnancies. According to the central limit​ theorem, what is the mean and standard deviation ​SD(y overbar​) of the normal model of the distribution of the sample​ mean, (y overbar)​? The mean is nothing. ​SD(y overbar​)=    ​(Round to two decimal places as​ needed.) ​

d) What is the probability that the mean duration of these​ patients' pregnancies will be less than 264 ​days? ​P(y overbar less than 264​)equals nothing ​(Round to three decimal places as​ needed.)

The driving force for HIT adoption is the recognition of human limitations in knowing, retaining and applying exponentially increasing amounts of relevant information to clinical processes. Health care planners could be effective and efficient if they used the concept of the natural history of disease and the levels of prevention to design services that intervene at the weakest link in the chain of progression of specific diseases. Instead, most focus on high-technology solutions to preventable problems while experts know that high-technology solutions do not address health disparities, the major causes of diseases and disabilities. What are some characteristics of the medical care culture that hinder the prevention focus? How can EHR's be used to address health disparities?

The Human Resources Department of a company conducts a survey to determine if a new medical insurance plan is viewed favorably. Out of 200 employees surveyed 80 said they liked the change.   

a. Calculate a 95% confidence interval for the population proportion who view the change favorably.

b. What is the proper interpretation of the interval constructed in Part a?

i. There is a 95% chance that the population proportion lies within the constructed interval.

ii. If 20 similar confidence intervals were constructed on average 19 of these would contain the population proportion.

iii. The interval defines the values that are not plausible for the population proprtion.

Laura and Andrea work as independent consultants in the area of human resources for companies that need training for their collaborators. The two give leadership conferences and do customer service training. It is estimated that the frequency with which they provide one or the other service can be framed within a Poisson process with different frequency rates: Laura gives leadership conferences with an average rate of 4 per month, while customer service trainings are performed at an average frequency of 9 every two months. On the other hand, it is estimated that in a month Andrea dictates, on average, 3 leadership conferences, while she is able to teach 72 customer service training courses per year, on average.
If necessary, assume a month is 4 weeks or 30 days. According to the previous information, answer:

a. What is the probability that in 18 weeks, Laura will teach 12 customer service courses and Andrea will give 10 leadership conferences?

The human resources department of a major corporation announced that the number of people interviewed by the corporation in one month has a mean of 108 and a standard deviation, σ, of 15. The management of the corporation suspects that the standard deviation differs from 15. A random sample of 17 months had a mean of 113 interviews, with a standard deviation of 9. If we assume that the number of people interviewed by the corporation in one month follows an approximately normal distribution, is there enough evidence to conclude, at the 0.01 level of significance, that the management's claim is correct?

Perform a two-tailed test. Then fill in the table below.

Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.