explain in detail what factors make one interest group more successful than others. provide examples for your points?

A transect is an archaeological study area that is 1/5 mile wide and 1 mile long. A site in a transect is the location of a significant archaeological find. Let x represent the number of sites per transect. In a section of Chaco Canyon, a large number of transects showed that x has a population variance σ² = 42.3. In a different section of Chaco Canyon, a random sample of 21 transects gave a sample variance s² = 46.7 for the number of sites per transect. Use a 5% level of significance to test the claim that the variance in the new section is greater than 42.3.

(a) What is the level of significance?


State the null and alternate hypotheses.

H₀: σ² > 42.3; H₁: σ² = 42.3H₀: σ² = 42.3; H₁: σ² ≠ 42.3    H₀: σ² = 42.3; H₁: σ² > 42.3H₀: σ² = 42.3; H₁: σ² < 42.3

(b) Find the value of the chi-square statistic for the sample. (Round your answer to two decimal places.)


What are the degrees of freedom?


What assumptions are you making about the original distribution?

We assume a normal population distribution.We assume a exponential population distribution.    We assume a uniform population distribution.We assume a binomial population distribution.

(c) Find or estimate the P-value of the sample test statistic.

P-value > 0.1000.050 < P-value < 0.100    0.025 < P-value < 0.0500.010 < P-value < 0.0250.005 < P-value < 0.010P-value < 0.005

(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis?

Since the P-value > α, we fail to reject the null hypothesis.Since the P-value > α, we reject the null hypothesis.    Since the P-value ≤ α, we reject the null hypothesis.Since the P-value ≤ α, we fail to reject the null hypothesis.

(e) Interpret your conclusion in the context of the application.

At the 5% level of significance, there is insufficient evidence to conclude that the variance is greater in the new section.At the 5% level of significance, there is sufficient evidence to conclude that the variance is greater in the new section.    

What is a point estimate?

What is the best point estimate for the population mean? Explain why it is the best.

Why do we need confidence intervals?

Write a paragraph that correctly interprets the confidence intervals in context of your selected topic. You should use the standard language we always use when interpreting a confidence interval in plain English (or something close to it). Compare and contrast your findings for the 95% and 99% confidence intervals. Did you notice any changes in your interval estimate? Be specific. What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain why you draw this conclusion.

Be sure to number each section in your paper using the same numbers as above. Remember that this should read like a paper, not a series of bullet points. If I was your supervisor, submit the paper as you would an analysis/report to your boss. It should be neat and professionally formatted.

Answer it in detail (1-2 paragraphs)

1. Define a reference frame and then an inertial reference frame. Give example of both inertial and non-inertial reference frames.

2. Explain the concept of time dilation. What is the twin paradox?

3. Explain why it is impossible for an object to travel at the speed of light (Hint: evaluate the energy of the object)

4. Discuss the importance of the photoelectric effect in the context of quantum physics.

5. What is the de Broglie wavelength? List at least one experimental evidence the matter exhibits wave characteristics.

6. State Hesisenberg's uncertainty principle.

7. When you submit your tax return to the IRS, they screen your return for indications of fraud. Naturally the screening system is not perfect: only 92% of fraudulent tax returns get red-flagged (that is, the IRS’ system detects the fraud), and 9% of honest tax returns get red-flagged (the system mistakenly believes these good returns to be fraudulent). A tax return the IRS believes not to be fraudulent is said to be “green-flagged.” Suppose that 4% of all tax returns are fraudulent. (a) What percent of all tax returns are correctly flagged?

(b) If a tax return is red-flagged, what is the probability this return is fraudulent?

(c) The answer to part (b) might worry an administrator at the IRS (or a taxpayer, for that matter!). Briefly explain what causes the answer to part (b) to be somewhat low.

Why is it necessary to prioritize your time. What do you mean by setting your goals with SPIRIT. Explain in detail. What are different guidelines for efficient planning? How can you manage your workload easily?

6.1 Housing of gearbox

analyse and identify the manufacturing processes used to make the component – both primary (bulk shape forming) and secondary (or finishing) processes. Include sub-sub-section as follows for each component:
o 6.1.1 Component Observations
? Describe your observations of the physical component which indicate what manufacturing processes were performed.
o 6.1.2 Manufacturing Process
? With supporting literature and research, describe the chosen manufacturing process concisely in detail, noting its advantages and disadvantages – describe it in the context of the gearbox you are looking it, not just generally.
? Detail the advantages and disadvantages of these processes
? Relate the chosen method to production volume of the gearbox.
o 6.1.3 Material Relationship
? Relate to the material and its appropriateness in this manufacturing method (e.g. does it have suitable castability?)

Thank you.

Explain in detail the following terms; e-health, m-health, e-therapy, telemedicine, and telehealth and discuss how these fields will continue to expand. Please cite your sources and explain in detail. Thank you.

Explain in detail the following terms; e-health, m-health, e-therapy, telemedicine, and telehealth and discuss how these fields will continue to expand. Please cute your sources and explain in detail. Thank you.