You are given the following for cohort of VA GLWB contracts aged 65: • Beginning of year contracts in force 1500 • Deaths during the year 10 %3D %3D • Lapses during the year 50 %3D • Number of contracts who took withdrawals = 550 %3D • Total amount of withdrawals taken for the year = 2 million %3D • Maximum annual withdrawal benefit allowed per contract 5000 Calculate the frequency, severity, and utilization rate for this cohort.
Q: John wants to open a learning center for high school students in his community. John wants to…
A: Here, mean 18.9 of regional area, which is population mean, and we take sample from high school…
Q: Answer must be a fraction in lowest term. * The probability distribution of the discrete random…
A:
Q: Suppose a life insurance company sells a $230,000 one-year term life insurance policy to a…
A: A life insurance company sells a $230,000 1-year term life insurance policy The probability of…
Q: At a recent meeting at the American College of Asthma, Allergy, and Immunology, researchers reported…
A:
Q: MO22. Medical researchers have developed a new artificial heart constructed primarily of titanium…
A:
Q: . What size sample should be obtained if she wishes the estimate to be within 0.04 with 90%…
A: here given, p = 0.32 MOE = 0.04 Z-score for 90% confidence level = 1.645 ( use Excel command…
Q: The following table presents the intelligence quotients of runaway boys. Intelligence Quotient 30 -…
A:
Q: sample of 624 applicants to the Durmstrang Institute of Sorcery, 133 were accepted. Construct a 90%…
A: Given that X=133 , n=624 , p=20%=0.20
Q: Question 5: The owner of a small pet supply store wants to open a second store in another city, but…
A:
Q: 7.67 of 24 points O Points: 0 of 1 Use the given data to find the minimum sample size required to…
A:
Q: have a large n)? Would you reject the null hypothesis that Ho : µ = 0 for an alternative Ha : µ > 0?
A:
Q: MO22. Supercavitation is a propulsion technology for undersea vehicles that can greatly increase…
A: Given,n=8x¯=102.2σ=4H0:μ=100H1:μ<100α=0.05
Q: MO21. An Article in the Journal of Sports Science (1987, Vol. 5, pp. 261-271) presents the results…
A: GivenMean(x)=15.23standard devaition(s)=0.6117sample size(n)=20confidence interval = 95%
Q: Given that X is a continuous random variable that has a uniform probability distribution, and 2.5 <…
A:
Q: public bus company official claims that the mean waiting time for bus number 14 during peak hours is…
A:
Q: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in…
A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…
Q: Which of the following statements are true about random sampling: none of the other answers are…
A: We will tell you which one is the correct choice.
Q: MO22. A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has…
A: Mean(µ) = 12Standard deviations (σ) = 0.5Sample size (n) = 4Hypothesis:-H0 : µ = 12H1: µ < 12
Q: Recently a community college offered a 2-credit course to help students with math anxiety. At the…
A: Calculate the Means and Sum of squares
Q: For a particular kind of battery, the probability density function for x hours to be the life of a…
A:
Q: The equation for the 1.5 mile run/jog test is: VO2max (ml/kg/min) = 3.5 + [483 + (time in min.)] %3D…
A:
Q: hich of the following are assumptions for testing a single population proportion? (Select all that…
A: Here, we know that in the one proportion test, It must be numerical. Population is normal,…
Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the…
A: Given: Sample size, n=410 No. of baby girls, x=328 Confidence level=99%
Q: Visual Representation: Desirability Survey HISTOGRAM: DESIRABILITY BOX & WHISKER: SCORES…
A: Given the histogram and box plot for desirability scores of employees and manager. We have to…
Q: 4. As an aid for improving employees working habits, eight employees were randomly selected to…
A:
Q: sing a random sample of 4 specimens. Find B for the case where the true mean elongation is 11.26…
A: Given Mean = 12 Standard deviation =0.5
Q: According to an almanac, 80% of adult smokers started smoking before turning 18 years old. (a)…
A:
Q: You are given the following number of exposures and claims for 5 years: Year Number of Exposures…
A: Let the number of claims follows Poisson distribution with parameter λ.
Q: You wish to determine if there is a positive linear correlation between the two variables at a…
A: The independent variable is x and the dependent variable is y. We have to find the correlation…
Q: Steve Burns, host of the first season of Blue' clues recently bids goodbye to the show. Assuming…
A:
Q: In sampling a large number of parts manufactured by a machine , the mean number of defectives in a…
A:
Q: b) Assume that a recent survey suggests that about 82% of adults have heard of the brand. n = (Round…
A:
Q: (a) Find a 90% confidence interval for the difference in mean scores between attempt 1 and attempt…
A:
Q: Mean = Variance Standard Deviation 10.55 280.95 16.77 2. What is the data value (raw score)…
A: Let X be the random variable from normal distribution with mean (μ) = 10.55 and standard deviation…
Q: UNGROUPED DATA (30points) Find the skewness and kurtosis given 4,10,11,15,8,5,13 (use the SAMPLE…
A: Given data : 4,10,11,15,8,5,13
Q: n! nP, = %3D (n-r)! to find the value for each expression. 1) Use the formula for Permutations,…
A: Pr=n!n-r!n
Q: The employees of a local manufacturing plant pledged the following donations in dollars to the…
A:
Q: Based
A: Equation that was created: y=47003x + 51503y =1566.67x + 1716.67
Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 421 green peas…
A: Given - 421 green peas, 154 yellow peas Total - n=(421+154) = 575 X=154
Q: MO22. A hypothesis will be used to test that a population mean equals 10 against the alternative…
A: Given that μ=10 Null hypothesis=H0 , Alternate hypothesis=H1 H0: μ=10 Vs H1: μ<10
Q: log (wage) = -0.90 + 0.11edục where wage is measured in dollars per hour, and educ denotes the years…
A:
Q: A claim by a researcher stated that the time spent on the internet per week is greater than 7 hours…
A:
Q: The weights (in pounds) of 6 vehicles and the variability of their braking distances (in feet) when…
A: Given that
Q: m
A: Part 1) After sorting the data from small to large, we know that the data ranges from 30 to 79 and…
Q: (a) There are 97% of the cars will be loaded with more than K tons of coal. What is the value of K?…
A: here AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS Coal is carried from a mine in West Virginia to…
Q: hourly rates (in pesos). The data is as follows: City of Manila 190 140 130 Quezon City 179 150 120…
A: 1) The Null and alternative hypothesis:Ho: µ1 = µ2Ha: µ1 ≠ µ2 2) degree of freedom(df) = n1+n2-2…
Q: It is believed that animals leving in northerm regions have shorter appendages than animals Iiving…
A:
Q: Variance Standard Deviation 7 05 Mean = 3.75 49.75 14. What are the data values (raw scores)…
A: Let X be the random variable from normal distribution with mean (μ) = 3.75 and standard deviation…
Q: What is the probability of getting at most four (4) heads in tossing a coin five (5) times? Select…
A: X: number of headX~binomial(n,p)where n=5 p=12=0.5 (probability of getting…
Q: A data set includes both ways of 400 babies if we compute the values of sample statistics from that…
A: Given a data set includes both ways of 400 babies
Step by step
Solved in 2 steps
- The management of BCD Inc. would like to separate the fixed and variable components of electricity as measured against machine hours in one of its plants. Data collected over the most recent six months follow:Electricity MachineMonth Cost Hours January $1,100 4,500February 1,110 4,700March 1,050 4,100April 1,200 5,000May 1,060 4,000June 1,120 4,600Required: 1. Using the method of least squares, compute the fixed cost and the variable cost rate for electricity expense. (Round estimates to the nearest cent.) 2. Compute coefficients of correlation and determinationConsider a cohort study to compare the mortality rate of myocardial infarction (MI) in men with sedentary work (exposed group) to men with physically active work (unexposed). If in the exposed, there were 36,000 person (man) years of observation and 126 deaths whereas the unexposed had 24,000 man-years of observation and 44 deaths. Compute the following a) Mortality rate in each cohort? b) What is the relative risk of dying, comparing these 2 groups? c) What is the attributable risk of sedentary work? d) What is the attributable benefit of physical activity? e) If we assume that MI is associated with the mortality in this cohort (causality), what proportion of the disease in the higher group is potentially preventable?The production planning period for flat-screen moni-tors at Louisiana’s Roa Electronics, Inc., is 4 months. Cost data are as follows:Regular-time cost per monitor $ 70Overtime cost per monitor $110Subcontract cost per monitor $120Carrying cost per monitor per month $ 4 For each of the next 4 months, capacity and demand for flat-screen monitors are as follows: PERIOD MONTH 1 MONTH 2 MONTH 3 a MONTH 4Demand 2,000 2,500 1,500 2,100CapacityRegular time 1,500 1,600 750 1,600Overtime 400 400 200 400Subcontract 600 600 600 600aFactory closes for 2 weeks of vacation.CEO Mohan Roa expects to enter the planning period with 500monitors in stock. Back ordering is not permitted (meaning, forexample, that monitors produced in the second month cannot beused to cover first month’s demand). Develop a production planthat minimizes costs using the transportation method.
- Burger Dome sells hamburgers, cheeseburgers, French fries, soft drinks, and milk shakes, as well as a limited number of specialty items and dessert selections. Although Burger Dome would like to serve each customer immediately, at times more customers arrive than can be handled by the Burger Dome food service staff. Thus, customers wait in line to place and receive their orders. Suppose that Burger Dome analyzed data on customer arrivals and concluded that the arrival rate is 45 customers per hour and 1 customer processed per minute. Compare a multiple-server waiting line system with a shared queue to a multiple-server waiting line system with a dedicated queue for each server. Suppose Burger Dome establishes two servers but arranges the restaurant layout so that an arriving customer must decide which server's queue to join. Assume that this system equally splits the customer arrivals so that each server sees half of the customers. How does this system compare with the two-server…Suppose you have been employed by ALADIN Solutions Ltd. as an Operations Manager to study the efficiency of customer service center of SONE Bank in handling customers. The customer service center has two serving points, Alpha and Bravo, through which customers are catered. Your field survey results are presented in Table 1 as follows: Table 1: Wait time of Service Points in Minutes Customer No. Alpha Bravo 1 12 10 2 16 3 3 11 8 4 10 7 5 17 6 6 10 16 7 13 15 8 18 16 9 6 20 10 17 9 You are required to write a letter to your supervisor for presenting the results of your analysis. Use mean waiting times and box plots as the tools to compare the efficiency of Alpha and Bravo serving points. Assuming a customer visits Alpha and Bravo points and is handled in 18 minutes. Which point is handling customer better? Use Z-Score to determine this and incorporate the results in your letter.Suppose you are a production manager for a small firm that manufactures designer phone cases. Your production facility utilizes three machines. Quality is binary — each phone case is either defective or it is not defective. Each hour, Machines 1, 2, and 3 produce 10, 10 and 20 phone cases, respectively. But because the machines differ slightly in their technology, data on past production has shown that they differ in terms of their rates of defective output — specifically, Machines 1, 2, and 3 have rates of defective production of 2%, 4%, and 5%, respectively. If one phone case is selected randomly from one hour’s total output, and that phone case is found to be defective, what is the probability that it was produced by Machine 1? Machine 2? Machine 3?
- In a continuous-time surplus model, the claim severity is distributed as BN(2, 0.4). Determine the Lundberg upper bound for the probability of ultimate ruin if the initial surplus is 2 and the prIn a continuous-time surplus model, the claim severity is distributed as BN(2, 0.4). Determine the Lundberg upper bound for the probability of ultimate ruin if the initial surplus is 2 and the premium loading factor is 0.25.emium loading factor is 0.25.Suppose you have been employed by ALADIN Solutions Ltd. as an Operations Manager to study the efficiency of customer service center of SONE Bank in handling customers. The customer service center has two serving points, Alpha and Bravo, through which customers are catered. Your field survey results are presented in Table 1 as follows: [Total Marks: 05] Table 1: Wait time of Service Points in Minutes Customer No. Alpha Bravo 1 12 10 2 16 3 3 11 8 4 10 7 5 17 6 6 10 16 7 13 15 8 18 16 9 6 20 10 17 9 You are required to write a letter to your supervisor for presenting the results of your analysis. Use mean waiting times and box plots as the tools to compare the efficiency of Alpha and Bravo serving points. [03 Marks] Assuming a customer visits Alpha and Bravo points and is handled in 18 minutes. Which point is handling customer better? Use Z-Score to determine this and incorporate the results…If there is no seasonal effect on people getting sick, we would expect equal numbers of people getting sick in each season (winter, spring, summer and fall). A student takes a census of students who took Marketing Research in 2019 and finds that of the 280 students who took Marketing Research in 2019, 75 were sick in winter, 65 were sick in spring, 68 were sick in summer and 72 were sick in fall. She wonders if the excess in the winter is an indication that sickness rates are not uniform throughout the year. Perform the appropriate chi-square test and indicate the chi-square value below. (Report two decimals)
- Researchers measured the distribution of beak sizes in a cohort of medium ground finch hatchlings in the Galapagos Islands in 1976 just before, and in a cohort of hatchlings two years after a severe drought. They measured 100 finches in each cohort. After the drought, the proportion of large, harder seeds was substantially greater than before the drought. Their data documenting this selective event are shown in graphical and tabular form below. Beak size (mm) Frequency before selection Frequency after selection 10.010.0 0.000.00 0.000.00 10.210.2 0.000.00 0.000.00 10.410.4 0.020.02 0.000.00 10.610.6 0.040.04 0.000.00 10.810.8 0.080.08 0.000.00 11.011.0 0.160.16 0.000.00 11.211.2 0.200.20 0.000.00 11.411.4 0.200.20 0.000.00 11.611.6 0.160.16 0.020.02 11.811.8 0.080.08 0.040.04 12.012.0 0.040.04 0.080.08 12.212.2 0.020.02 0.160.16 12.412.4 0.000.00 0.200.20 12.612.6 0.000.00 0.200.20 12.812.8 0.000.00 0.160.16 13.013.0 0.000.00 0.080.08 13.213.2…The data table shows the yields for a one-year certificate of deposit (CD) and a five-year CD for 13 banks. Complete parts (a) through (c). One-Year CD Five-Year CD 2.47 3.24 3.47 4.78 2.88 4.61 3.64 4.98 2.81 2.75 3.65 3.87 2.86 2.87 3.75 3.69 2.79 2.67 4.14 3.51 4.24 4.76 4.94 4.89 3.31 3.72 a. Compute the first quartile (Q1), the third quartile (Q3), and the interquartile range for a one-year CD.After examining these data for all the jurisdictions, someone notes that certain areas have an unusually high “percent of 18-64 yr-olds with no high school diploma.” Based on this finding, this individual concludes that the high percentages are due to the rising population of immigrants in those areas. Further, the individual argues that any estimates of the associated “percent of low-income working families” in those areas should be recalculated after removing this sub-population from the data set, as they are causing the area to “look bad”. In addition to thinking critically, use the key rules about linear regression and extrapolation to write a statistically appropriate and socially responsible response to the individual’s conclusion and argument.