(i)Annual claim frequency for an individual policyholder has mean 1 and variance o?.(ii)The prior distribution for 1 is uniform on the interval [0.5, 1.5].(ii)The prior distribution for o? is exponential with mean 1.25.A policyholder is selected at random and observed to have no claims in Year 1.Using Bühlmann credibility, estimate the number of claims in Year 2 for the selectedpolicyholder.(A)0.56(B)0.65(C)0.71(D)0.83(E)0.94

Answered: Image /qna-images/answer/8c6e2a62-8fc4-45f4-ab15-f44034a952ac.jpg

Answered: (i) Annual claim frequency for an…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In the year 2033, Sarai Patterson is a leading traveling nurse. Sarai is interested in reducing the mean recovery time for patients after experiencing a serious injury (assume recovery times are normally distributed). Suppose the mean recovery time is presently 8.6 months. Sarai takes a random sample of 46 patients that have experienced serious injury to participate in a new treatment program and finds the sample mean is 8.1 months and a sample standard deviation of 1.2 months. Using α = 0.05, answer the following questions. a) What is the setup for your null and alternative hypothesis? b) What is the value of the test statistic? c) What is/are the critical value(s)?
Calculate the geometric mean return of the following returns Date Return 11/01/2018 5.96% 11/14/2018 6.05% 12/01/2018 0.29% 12/14/2018 1.18% NOTE: Enter the PERCENTAGE number rounding to two decimals. If your decimal answer is 0.034576, your answer must be 3.46. DO NOT USE the % sign Calculate the variance for the returns below Date Return 11/01/2018 0.6% 11/14/2018 6.7% 12/01/2018 -4.31% 12/14/2018 2.55% NOTE: Enter the DECIMAL number rounding to four decimals. If your decimal answer is 0.034576, your answer must be 0.0346. DO NOT USE the % sign
Max Auto Sales is considering offering a special service contract that will cover the total cost of any service work required on leased vehicles. Service costs are approximately normally distributed with a mean of u and a standard deviation of RM 25. (i) If only 3% of the service cost is less than RM103, find the mean service cost. (ii) What is the probability that the service cost will be between RM130 and RM160 for a year? (iii) If the company offers the service contract to customers for a charge of RM180, what is the probability that any one customer’s service costs will exceed the contract price of RM180?
Mf1. 7. Consider the following returns: (1) What are standard deviations of stock X and stock Y respectively? (2) What are is the correlation between stock X's return and stock Y's return? (3) Please estimate the return and standard deviation of the combination of stock X and stock Z in the equal shares
Suppose that the lifetimes of tires of a certain brand are normally distributed with a mean of 74,500 miles and a standard deviation of o miles. These tires come with a 55,000-mile warranty. The manufacturer of the tires can adjust o during the production process, but the adjustment of o is quite costly. The manufacturer wants to set ở once and for all so that only 1% of the tires will fail before warranty expires. Find the standard deviation to be set. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. | miles Check esc -> @ 23 24 4. 5 6 1 2 y e tab w/
Consider a population of 1024 mutual funds that primarily invest in large companies. You have determined that u, the mean one-year total percentage return achieved by all the funds, is 9.80 and that o, the standard deviation, is 0.50. Complete (a) through (c). a. According to the empirical rule, what percentage of these funds is expected to be within +2 standard deviations of the mean? 95 % b. According to the Chebyshev rule, what percentage of these funds are expected to be within +2 standard deviations of the mean? 75 % (Round to two decimal places as needed.) c. According to the Chebyshev rule, at least 88.89% of these funds are expected to have one-year total returns between what two amounts? Between and (Round to two decimal places as needed.)
Suppose the returns of a particular group of mutual funds are normally distributed with a mean of 9.5% and a standard deviation of 5.1%. If the manager of a particular fund wants to be sure that his fund is NOT in the bottom 25% of funds with the lowest return, what return must his fund have? (please round your answer to 2 decimal places)
Mean, variance, standard deviation, & z-scores: {5, 7, 7, 5, 5} {7, 7, 11, 7, 10} N=5
Apply Chebyshev’s rule with k = 3 to verify that at least 89% of the observations in any data set lie within three standard deviations to either side of the mean, that is, between x - 3s and x + 3s.
Assume that the following satisfaction scores of three companies for the 4th quarter of 2010 and 2011 were obtained from the Rochester's Customer Satisfaction Index. Assume that the scores are based on a poll of 100 customers from each company. Because the polling has been done for several years, the standard deviation can be assumed to equal 7 points in each case. (The scores on the following table are hypothetical values for the exam only) Company Costco BJ's Sam's 2010 Score 73 Ha: μ 1-μ 2 > 0 Ho: μ 1-μ 2 > 0 Ho: u 1-μ2=0 none of the above- Ha: μ 1-μ 2 <0 75 77 2011 Score 75 77 79 Professor Pan is interested in knowing whether the difference in the satisfaction score for Costco from 2010 to 2011 is statistically significant. assume a=5%, Professor Pan came up with the following hypotheses. Which of the following null or alternative hypotheses is correct?
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Suppose we are about to sample 200 values from a normally distributed population that has a mean of 120 and a standard deviation of 70. What is the 10th percentile of the sampling distribution of the sample mean in this scenario? (Give your numeric response to at least 3 decimal places. Give only your numeric response, and no extra characters or symbols.)

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