^{The relative contribution of our genes and the influence of our diet and lifestyle to obesity has been the subject of numerous studies. As the rates of obesity in the adult population in the U.S. are approaching 40% (according to CDC), to find the answer to the question of nature vs. nurture in obesity is becoming extremely urgent.}  

^{In your post, explain in detail how nurture and nature can contribute to the development of obesity. What are the two most convincing pieces of evidence that both genetic and environmental factors play significant roles in the development of obesity? The answer must be at least 120 words with at least one references.}

A recent debate about where in the United States skiers believe the skiing is best prompted the following survey. Test to see if the best ski area is independent of the level of the skier. (Use a significance level of 0.05.)

• Part (a)

  State the null hypothesis.

  Ski area is dependent on the level of the skier.Ski area is independent of the level of the skier.    

• Part (b)

  State the alternative hypothesis.

  Ski area is independent of the level of the skier.Ski area is dependent on the level of the skier.    

• Part (c)

  What are the degrees of freedom? (Enter an exact number as an integer, fraction, or decimal.)
  (No Response)

• Part (d)

  State the distribution to use for the test.

  χ²₂

  t₄

      

  χ²₄

  t₂

• Part (e)

  What is the test statistic? (Round your answer to two decimal places.)
  (No Response)

• Part (f)

  What is the p-value? (Round your answer to four decimal places.)
  (No Response)
  
  Explain what the p-value means for this problem.

  If H₀ is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value.If H₀ is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value.    If H₀ is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value.If H₀ is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value.

• Part (g)

  Sketch a picture of this situation. Label and scale the horizontal axis, and shade the region(s) corresponding to the p-value.

• Part (h)

  Indicate the correct decision ("reject" or "do not reject" the null hypothesis) and write the appropriate conclusion.(i) Alpha:
  α = (No Response)
  
  (ii) Decision:

  reject the null hypothesisdo not reject the null hypothesis    

  
  (iii) Reason for decision:

  Since α < p-value, we do not reject the null hypothesis.Since α > p-value, we reject the null hypothesis.    Since α > p-value, we do not reject the null hypothesis.Since α < p-value, we reject the null hypothesis.

  
  (iv) Conclusion:

  The best ski area and level of skier are independent.The best ski area and level of skier are not independent.  

PARAGRAPH ANALOGY OF ACTION POTENTIAL

In a single paragraph discuss the process of an action potential. Explain it in a way that you would tell an eight year old - using an analogy. I would like to see you use an analogy and the more creative the better!

Note: You CANNOT use the domino effect or firing a gun as the analogy.

You must include four (4) of the following terms in your analogy: all-or-nothing response, axon, resting state, soma (cell body), threshold, positive or negative ions, depolarized, refractory period

Multiple Means of Representation Learners perceive and comprehend information differently. Your goal in this section is to explain how you would present content in various ways to meet the needs of different learners. For example, you may present the material using guided notes, graphic organizers, video or other visual media, annotation tools, anchor charts, hands-on manipulatives, adaptive technologies, etc. In a bulleted list, describe the materials you will use to differentiate instruction and how you will use these materials throughout the lesson to support learning. Bold any materials you will need to prepare for the lesson.

For example: • I will use a Venn diagram graphic organizer to teach students how to compare and contrast the two main characters in the read-aloud story. • I will model one example on the white board before allowing students to work on the Venn diagram graphic organizer with their elbow partner. Explain how you will differentiate materials for each of the following groups: • English language learners (ELL): • Students with special needs: • Students with gifted abilities: • Early finishers (those students who finish early and may need additional resources/support): Time Needed

Ponceau S is a red dye that reversibly binds to all proteins. We will use this stain prior to developing the Western blot next week with antibodies. Assume that you do not observe any protein bands on the nitrocellulose blot after performing the Ponceau S stain. Describe one likely procedural error during the transfer set-up that would account for this observation.

Choose an issue related to global trade and discuss it in detail. Who is affected? How is it monitored/managed? What are the implications for the future? Defend your answer.

Van der Waals Gases

Under what conditions of volume does a van der Waals gas behave like an ideal gas? Use the van der Waals equation of state to justify your answer.

The number of breakdowns each day on a section of road were recorded for a sample of 250 days

as follows:

Number of breakdowns Number of days

0 100

1 70

2 45

3 20

4 10

250

Calculate the 95 per cent and the 99 per cent confidence intervals for the mean. Explain your

results.

1. A sociologist studied random samples of full-time employees in a particular occupation – six women and six men – to determine whether gender has an influence on the average (mean) number of hours worked per day. She obtained the following results:

           Women                Men  

                10                      12

                 9                        9

                 7                        8

                 4                       10

                 9                       11

                 6                        7     

Use a .01 alpha level to test whether there is a gender difference in the mean number of hours worked, and answer the following questions:

1. Is this a one-tailed or two tailed test? How do you know?
2. What is the critical value of the test statistic?
3. What is the obtained value of the test statistic?
4. What decision about the null hypothesis does your test lead to?
5. What does this indicate about gender differences in hours worked among the population working in this occupation?
6. Would your decision be different if you used an alpha level of .05? Explain.

A team of psychologists have developed an experimental treatment program for a learning disorder with the expectation that the treatment would enable recipients to score higher than before on a test of learning ability. To test the treatment, they randomly select a pool of 30 volunteers who have been diagnosed with the disorder and who have volunteered for the treatment program. Following treatment, the participants are retested on the learning ability test and their scores compared to earlier scores. Complete the following. (1 point each)

a. What statistical test would be appropriate in this case? Explain the rationale for your answer.

b. State the null and alternative hypotheses in words.

c. State the null and alternative hypotheses in statistical symbols

d. Would the test be right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.

e. Describe a potentially confounding variable and explain how that might affect the conclusions from the study.