In a Harris poll of 514 human resource professionals, 45.9% said
that body piercings and tattoos were big
grooming red flags. A professor of personnel managements believes
that fewer than half of all human resources
professionals would say that body piercings and tattoos were big
grooming red flags. Use a significance level of
0.01 and 0.05
H0: _____ _____ ______
Ha: _____ _____ ______
a. Follow our procedure on page 2 of our Unit 3 Day 1 notes to
bracket the claim, etc.
b. Which word or phrase in the claim determines the inequality in
the alternative hypothesis:
_________________
c. Which word, phrase or symbol in the problem tells us that this
problem involves a test for the proportion,
and not a mean?
_______________________________________________
d. Fill in the hypothesis.
e. Explain why the number “45.9” does not appear in the hypothesis:
_______________________
_____________________________________________________________________________________
f. The p-value is 0.032. Find the outcome of the test and write a
plain English interpretation of the outcome
using both α = 0.01 and α = 0.05.
In: Statistics and Probability
Chlorides enter the great lakes from human activity, but the most important sources is from the salting of roads in the winter to make them safe for driving. High Chloride concentrations (salty water) are damaging to the aquatic ecosystem. If, the great lakes would have chloride levels of > 20 mg/L, why would this be a problem? What uses of the lakes might be threatened by such high chloride concentrations? How do you think the lakes will be changed as a result of such high chloride concentrations?
Suppose you are the chief environmental engineer in charge of the joint Canadian – U.S. great lakes water quality commission. You have to set water quality limits for chlorides, recognizing that the limits you set would be considerably less than 20 mg/L and that changes in human lifestyle would be needed if the chloride concentration is to remain below these standards. What type of decisions would you be making? (there may be more than one, and there is no “correct” answer to this question.
In: Other
For questions 3 and 4, please remember that only one RNA strand is being synthesized, and only the template strand of the DNA is being transcribed.
3. (3 points) E. coli RNA polymerase adds ribonucleotides to an RNA strand at a rate of 22 per second. The size of the transcribed region of the largest gene in E. coli is 1538 bp. How long (in seconds) will it take RNA polymerase to complete transcription of an average-sized gene? (Round off to the nearest whole number):
Please show your calculations in the space below.
4. (4 points) The average size of the transcribed region in a human gene is 10,000 bp. If a eukaryotic RNA polymerase adds ribonucleotides at a rate of 28 per sec, how long (in minutes) will it take the RNA polymerase to complete transcription of an average human gene? (Round off to the nearest whole number):
Please show your calculations in the space below.
In: Biology
1. Intelligence is an adaptation to a knowledge-using, socially interdependent lifestyle--the “cognitive niche.”
True
False
2. What did Alfred Russel Wallace argue about the theory of evolution?
a. Wallace notoriously claimed that the theory of evolution by natural selection was adequate to explain human intelligence.
b. Wallace notoriously claimed that the theory of evolution by natural selection was inadequate to explain human intelligence.
3. In biology, a “niche” is sometimes defined as:
a. the role an organism occupies among its family.
b. the role an organism occupies in an ecosystem.
c. All of the above.
d. None of the above.
4.
Humans possess an ability of metaphorical abstraction, which allows them to co-opt faculties that originally evolved for physical problem-solving and social coordination, apply them to abstract subject matter, and combine them productively.
True or False
5. Where was the cradle of our species?
a. Asia
b. Eastern Africa
c. The New World
d. Western Europe
In: Biology
The most common ethical issues in international business involve
Employment practices
Human rights
Environmental pollution
Corruption
Moral Obligations and Social Responsibility refers to the idea that business people should take the social consequences of economic actions into account when making business decisions, and that there should be a presumption in favor of decisions that have both good economic and good social consequences.
What are the moral obligations of multinational companies with regard to the common ethical issues?
In this discussion we will focus on the global environmental issues. We will evaluate employment practices and human rights in other assignments.
Is globalization the cause of global environmental issues? Do you think globalization can be the cure for these issues?
Here is a great article from the OECD sources that you should read before posting your comments.
What is the impact of globalization on the environment https://files.acrobat.com/a/preview/c476f1a4-a9b0-4b89-bd32-e61b13973c14
In: Economics
Cholesterol is vital to human health and well being. It plays an
important
role in the structure, fluidity and permeability of the cell
membrane, and helps
synthesize vitamin D and various hormones. Although cholesterol is
essential for
human health, high levels of cholesterol in the blood stream can
lead to damaged
blood vessels and cardiovascular disease. The cholesterol level in
mg/dl of a
group of Canadian adults is assumed to be normally
distributed.
1. Five individuals are randomly selected from this group. Below
are the
measurements of their cholesterol levels:
120 116 130 132 111
Compute a 95% confidence interval for the mean cholesterol
level.
2. Fifteen individuals are randomly selected from this group.
120 116 130 132 111 122 130 111 143 127 129 135 150 121 112.
Compute a 95% confidence interval for the mean cholesterol
level.
3. Based on these two confidence interval constructions, what do
you conclude?
In: Statistics and Probability
You are an MD/PhD student studying left-right laterality defects in humans. You are monitoring a pregnancy in which the heart and stomach are positioned on the incorrect side of the body, while the rest of the organs are positioned normally.
a) [2pts] What would be the name of this type of visceral organ defect?
You are able to perform corrected surgery on the infant soon after birth. You perform a genetic analysis and discover this child had a mutation in a stretch activated calcium channel.
b) [2pts] What are the normal roles of stretch activated calcium channels?
c) [4pts] Why might this mutation cause the left-right laterality defects you observed?
d) [4pts] Assuming that mouse and human left-right patterning are achieved through similar mechanisms what would you predict Nodal expression in the LPM would have looked like in this human patient during early development? Explain your thinking.
In: Biology
According to modern science, Earth is about 4.5 billion years old and written human history extends back about 10,000 years. Suppose the entire history of Earth is represented with a 10-meter-long timeline, with the birth of Earth on one end and today at the other end. a. What distance represents 1 billion years? b. How far from the end of the timeline does written human history begin?
A certain antihistamine is often prescribed for allergies. A typical dose for a 100-pound person is 19 mg every six hours. Complete parts (a) and (b) below. a. Following this dosage, how many 12.4 mg chewable tablets would be taken in a week? b. This antihistamine also comes in a liquid form with a concentration of 12.4 mg/8 mL. Following the prescribed dosage, how much liquid antihistamine should a 100-pound person take in a week?
In: Advanced Math
The Human Toxome Project (HTP) is working to understand the scope of industrial pollution in the human body. Industrial chemicals may enter the body through pollution or as ingredients in consumer products.
In October 2008, the scientists at HTP tested core blood samples for 35 newborn infants in the United States. The cord blood of the "In utero/newborn" group was tested for 430 industrial compounds, pollutants, and other chemicals, including chemicals linked to brain and nervous system toxicity, immune system toxicity, and reproductive toxicity, and fertility problems. There are health concerns about the effects of some chemicals on the brain and nervous system. Upon calculation of the sample, the mean of the amount of the chemical found in the infant's blood is equal to with sample standard deviation equal to.
Construct the 90% confidence interval by
- Clearly explain what model was used and why
- Clearly show your process, if using calculator explain what you did.
- Explain the meaning of the 90% confidence interval in the context of the problem.
In: Statistics and Probability
Scenario
In a meeting with members of Informational Systems operations area, you ask middle managers about the recent sub-par performance in the department and their thoughts about the reasons behind it. They state that their performance goals are set too high, with the vast majority of their employees missing their individual targets across the board.
In your education and training to be an organizational behavior consultant, you studied various needs-based motivational theories:
Your Task
Which of the motivational theory/theories do you think is best for describing human behavior in the workplace? Based on that, how would you construct a work environment using reward strategies, work-life balance considerations, and other approaches?
In: Operations Management