Note: R is the last digit of the student registration number. (second last digit, if the last digit is zero) I) Value of the portfolio today is $100. Annual mean u = 20%, variance o?= 10%. Time horizon is опе year. What is the V@R at R% probability?
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- Find the characteristic function and probability generating function of geometric distribution.Assume that adults have IQ score that are normally distributed with a mean of 100.4 and a standard deviation of 19.1. Find the probability that a randomly selected adult has an IQ greater than 130.7 (hint draw a graph.) the probability that a randomly selected adult from this group has an IQ greater than 130.7Please help me with this homework question.
- The chance of an IRS audit for a tax return with over $25,000 in income is about 2% per year. We are interested in the expected number of audits a person with that income has in a 16-year period. Assume each year is independent. Part (a) Part (b) List the values that X may take on. X=0, 1, 2,..., 15, 16 OX= 1, 2, 3, OX= 1, 2, 3, OX=1,2,3,... 15, 16 98, 99, 100 Part (c) Give the distribution of X X-B 0.02 □ Part (d) How many audits are expected in a 16-year period? (Round your answer to two decimal places.) 0.32 audits Part (e) Find the probability that a person is not audited at all. (Round your answer to four decimal places.) Part (1) Find the probability that a person is audited more than twice. (Round your answer to four decimal places.)How do you find the maximum likelihood estimator for the exponential distribution?Hz A certain brokerage house wants to estimate the mean daily return on a certain stock. A random sample of 19 days yields the following return percentages. -2.4, -2.64, 0.75, 1.96, 0.25, -2.17, 1.74, 2.59, 2.97,-0.86, -2.55, -0.72, -1.33, -0.95, -1.73, 2.49, 0.82, 0.15, -2.18 Send data to calculator Send data to Excel If we assume that the returns are normally distributed, find a 90% confidence interval for the mean daily return on this stock. Give the lower limit and upper limit of the 90% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit: I Don't Know Submit X 3 O Search e acer Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use * X
- Homework #6percentage may be now, so a of 250 of last year's freshmen 4. 78% of all to in Fall 2015. You think that the a and tind that 84% returned, www.csun.edu/counts/one_year_continuation_rate-plip a. What is p? _ What is the number of successes? What is n? b. Write the hypotheses: Circle the best definition of p. the proportion of all of last year's freshmen who returned the proportion of all 2014 CSUN freshmen who returned the proportion of all CSUN freshmen among the 250 who returned C. Assuming that Ho is true, the sampling distribution of p has a mean of Use the formula to compute the SE of the sampling distribution of p. Complete this sketch of the sampling distribution of p. Put a scale on the horizontal axis. Then locate the result from the sample and shade in area representing the p-value. (Is the area representing the p-value on one side or two sides?) Use StatCrunch to find the p-value for this situation. e. Is there statistically significant evidence that the percentage is…Suppose you invest in a piece of art that increases in value by 40% in the first year, 20% in the second year and 60% in the third year. 1. Calculate the arthmetic mean of the return. 2. Calculate the geometric mean of the return. 3. Explain the difference between what you got in the previous two questions.