Assume that your friend claims that he can run 20 km in less than an hour and a professional sports team will recruit him after graduation based on this outcome so he does not worry about his GPA at the university. You would like to test this claim and take a random sample of 34 runs this year and find that he averaged 58.2 minutes. Assume that the standard deviation of his runs is 8.5 minutes and it is normally distributed. a. State the null and alternative hypotheses. b. Test the hypotheses at the 5% significance level. What is the p-value of the test? c. What is your conclusion in the context of the question? d. Interpret the p-value you found above. e. What type of error you can commit here? Explain in the context of the question. Also, what are the implications of this error?
In: Statistics and Probability
What are examples of:
1. Sampling Error.
2. Sampling Distribution of Sample Means
3. Central Limit Theorem.
4. Standard Error of the Mean. The standard error of the estimate of the mean is represented by the equation: σ√n Discuss what this equation means, using your own words and explain why we use it. Consider how it relates to the fact that we are making assumptions about the population and not just the sample.
In: Statistics and Probability
Some financial analysts claim that the rise of the US stock market over the past decade is largely due to the repurchase of common stocks by big corporations using debt financing, such as Boeing and Intel. Is this claim valid? Explain carefully. In your explanation, explain under what circumstances this assessment would be valid, and state and explain the important assumptions in your arguments. (15 pts)
In: Finance
2. Chronic conditions have increased in prevalence and incidence over the last half century with better health care and longer life expectancy. Explain in detail chronic conditions as they related to therapeutic recreation.
3. Explain in detail chronic disability, quality of life, and rehabilitation for persons with physical disabilities as it relates to therapeutic recreation.
In: Nursing
For questions 15-20, consider a box with 3 red and 5 blue balls. 15. If one ball is drawn at random, what is the probability that the color is red? The probability that you pick a red ball is 3/8. 3 red, 5 blue 3+5=8 Therefore, 3/8. https://canvas.park.edu/files/5516027/download?download_frd=1&verifier=6xdC2s8YTdrrfONH1TZPJUK9jRKzh2UmtaqIbg9y 16. If two balls are drawn at random, what is the probability that both are red? Utilizing the tree... P (R X R)=(3/8) (2/7) 17. Two balls are drawn at random. If it is known that the first one is red, then what is the probability that the second one is red? 18. If two balls are drawn at random, what is the probability that they have the same color? 19. If two balls are drawn at random, what is the probability that they have different colors? 20. If three balls are drawn at random, what is the probability that at least one of them is blue?
In: Statistics and Probability
Give detail idea about Uber and its Humanising the brand. and picture the idea if you can
In: Economics
1- Give information about the stages of concrete production. Discuss any two stages in detail.
In: Civil Engineering
| i need the answers to all of them |
(a) a greater change of energy in the atom (b) a lesser change of energy in the atom (c) none of the above |
(a) a greater change of energy in the atom (b) a lesser change of energy in the atom (c) none of the above |
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3. Fluorescent materials are noteworthy because upon de-excitation they emit visible light after being are excited by (a) visible radiation (b) microwave radiation (c) x-rays (d) ultraviolet radiation |
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4. Assume the wavelength of a red photon is about double that of violet light. How does the energy E of a red photon compare with the energy of a violet photon? a) The energy is twice the energy of a violet photon b) The energy is one half the energy of a violet photon c) same energy |
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5. Assume the wavelength of a blue photon is about half that of red light. How does the energy of a blue photon compare with the energy of a red photon? |
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a. The energy is twice the energy of a red photon |
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b. The energy is one half the energy of a red photon |
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c. same energy |
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6. In this problem, assume the frequency of the light is above the threshold required to kick electrons out of the metal. In the photoelectric effect, the higher the wavelength of the illuminating light on the photosensitive surface, the lower the |
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a. number of ejected electrons |
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b. kinetic energy of ejected electrons |
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c. none of the above |
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7. One electron travels with twice the speed of another. Which has the higher wavelength? (a) the faster electron (b) the slower electron (c) wavelengths are the same |
In: Physics
13. A bin contains 3 red and 4 green balls. 3 balls are chosen at random, with replacement. Let the random variable X be the number of green balls chosen. a. Explain why X is a binomial random variable. b. Construct a probability distribution table for X. c. Find the mean (expected value) of X. d. Use the law of Large Numbers to interpret the meaning of the expected value of X in the context of this problem.
In: Statistics and Probability
Red Royal Industrial is evaluating the medical clinic project. During year 1, the medical clinic project is expected to have relevant revenue of 647,200 dollars, relevant variable costs of 207,600 dollars, and relevant depreciation of 63,700 dollars. In addition, Red Royal Industrial would have one source of fixed costs associated with the medical clinic project. Red Royal Industrial just signed a deal with Orange Valley Consulting to develop an advertising campaign for use in the project. The terms of the deal require Red Royal Industrial to pay Orange Valley Consulting either 74,500 dollars in 1 year if the project is pursued or 100,100 dollars in 1 year if the project is not pursued. Relevant net income for the medical clinic project in year 1 is expected to be 268,162 dollars. What is the tax rate expected to be in year 1? Answer as a rate in decimal format so that 12.34% would be entered as .1234 and 0.98% would be entered as .0098.
In: Accounting