f(x) = 121 Determine the probability that the battery fails before the one year warranty expires on the computer.

Q: Assume that the examination marks of students follow normal distri- butivn with unknown mean (4) but...

A: Given  μ=8, n=50, x̄=7.8, σ2=0.25  

Q: 2.4-4. It is claimed that 21% of the ducks in a partic- ular region have patent schistosome infectio...

A: Givenp=0.21n=9

Q: Mammography and clinical breast examination are the two major techniques used to screen for breast c...

A: Given information: Screening tests 9762 False positive tests 631

Q: Using the TI-84 calculator, find the area under the standard normal curve that lies between the foll...

A: To find the area under the standard normal curve that lies between the following z-values:

Q: 3. The table below shows the number of skilled and unskilled workers in two small communities, toget...

A:

Q: The graph shown in the Figure is polygon 13 12 11 10 9 8 4 2 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Length ...

A:

Q: As shown in the previous question, the average number of siblings (sibs) is about 3.5, with a standa...

A: A continuous random variable X follows Normal distribution with parameters μ and σ2 if its probabili...

Q: An automobile is being filled with petrol. The probability that oil is also need to be changed is 0....

A: Let A = oil is also need to be changedB= a new filter is neededP(A)=0.25  P(B)=0.40P(A∩B)=0.14

Q: An automobile is being filled with petrol. The probability that oil is also need to be changed is 0....

A: If a certain condition is imposed on happening of an event, then the probability of happening of tha...

Q: What sample size is needed to estimate a population mean within t70 of the true mean value using a o...

A: Solution-: Given: σ2=100000,M.E.=E=70,c=0.90 We find, sample size(n)=?  

Q: 500 apples are taken at random from a large basket and 50 are found to be had Éstimate the propurtio...

A:

Q: The prediction interval for Xn+1 will always be longer than the confidence interval for µ

A:

Q: Lillian conducted a small survey of her friends and family. She asked them how many hours per week t...

A: With respect to given scatter plot of variables the number of hours per week they spend reading digi...

Q: According to Masterfoods, the company that manufactures M&M's, 12% of peanut M&M's are brown, 15% ar...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: If the sample size is large, the normal distribution could be used for the interval estimate of the ...

A: Here given,  sample size is large 

Q: explain this elements of Sampling? 1. Sample is the representative of all the characters of the pop...

A: 1) Sample is the representative of all characters of the population. This means that if we choose sa...

Q: Given: N = 50, Mean of Y = 44, Variance, of X is %3D 9/16 of the variance of Y, Regression Equation ...

A: Solution is given:

Q: Problem #1 An Electronics firm employs 15 people whose yearly salaries (in hundred thousand of pesos...

A: We create distribution table for the above data, Observation (Xi)  Frequency  Probability p(x) ...

Q: Consider the normal distribution IQs with a mean of 100 and a S.D of 16. What percentage of IQs are:...

A: Given,mean(μ)=100standard deviation(σ)=16

Q: An enquiry into the budgets of the middle class families of a certain city revealed that on an avera...

A: Solution is given:

Q: Identify the type of sampling method. Write your answer on a separate sheet of paper. 1. The teacher...

A: 1.Simple random Sampling Explanation : As the teacher puts all the students names in a box and drawi...

Q: 9. You are given the following information about advertising expenditure and sales : Adv. Exp. (X)- ...

A:

Q: problem #4  letter G only

A: 1) List of samples having the Sample size n=2 from numbers 5,6,7,8 and 9 5 6 5 7 5 8 5 9 ...

Q: You measure 35 randomly selected textbooks' weights, and find they have a mean weight of 63 ounces. ...

A:

Q: Advertisement ($'000)   Sales ($'000) 1068    4489 1026    5611 767      3290 885      4113 115...

A: Here, advertisement (x) is the independent variable and sales (y) is the dependent variable.

Q: * (i) Let X,, .... X, be a random sample from the distribution with the PDF S(x: 0) = 2.r for 0<x<0....

A:

Q: expected

A: Here given,  An Insurance company sells a 1-year term life insurance policy to an 76-year-old woman....

Q: Let St = }(Yt + Yt-1) be a moving average process, Express the residual series YŁ – St, in term of t...

A: We are given St = 1/2(Yt  + Yt-1) And residual series is given by Yt-St is to expressed in terms of ...

Q: Explain underwriting risk and discuss two risks faced by insurance companie

A:

Q: Example 5.4 Consider a random sample (X1. X2..X) from an exponential dis- tribution with parameter à...

A:

Q: 2. Cardiovascular diseases (CVDS) are the number 1 cause of death globally, taking an estimated 17.9...

A: Mean = ΣXi/n = (40+49+37+48+54+39)/6 = 44.5  

Q: r 63. The frequency distribution of marks obtained by 60 students of a class in college is given bel...

A:

Q: Mr. X wants to determine on the basis of sample study the mean time required to complete a certain j...

A: It is given that Margin of error E = 2 Population SD = √(64) = 8 The critical value of Z at 95% conf...

Q: Advertisement ($'000)   Sales ($'000) 1068    4489 1026    5611 767      3290 885      4113 115...

A:

Q: An office machine has a time to failure distribution that is lognormal with a shape parameter s = re...

A:

Q: While performing searches on the Internet to find accommodation, Jasmine realized that the cost of a...

A: Given the data of number of Inhabitants and mean monthly rent of a 4 1/2 Room unit is shown below Th...

Q: Required: 1. Compute a materials price variance for the plates purchased last month and a materials ...

A: Solution: 1)     AP = $28,200 ÷ 12,000 plates = 2.35 Per plate AQ 12000   SP (Given) 2.5   ...

Q: Wages and salaries make up only part of a total compensation. Other parts include paid leave, health...

A:

Q: Sample distribution of variance follows a Chi-Square distribution with n-1 degrees of freedom   tr...

A: We have given that,  Sample distribution of variance follows a Chi-Square distribution with n -1 deg...

Q: Describe the graph you created above. 2. What measures of center and spread would be best to use for...

A: The given graph is histogram of weight gained for female while pregnant.  Where weight gained is rep...

Q: A psychiatrist is interested in finding a 98% confidence interval for the tics per hour exhibited by...

A: Given data is 0,0,6,12,8,11,0,1,9,4,1,8,11,0,6sample size(n)=15confidence interval = 98%

Q: A study of the ages of 100 persons grouped into intervals 20—22, 22—24, 24— 26......, revealed the m...

A: The mean and standard deviation for given data are 32.02 and 13.18.

Q: Table-Top Assembly Gross Requirements Scheduled Receipts 8/1 8/8 8/15 8/22 8/29 9/5 9/12 9/19 9/26 1...

A: or the Office Table above (the first MRP table), what is the Projected On-Hand Inventory in the week...

Q: If n=6 and mean= .40 , what is the probability that X>1?

A: Given,n=6 , mean=0.40A random variable X~Binomial(n, p)

Q: Twenty years ago, Juan Medina and Bertha Zenith got married. The Medina-Zenith family's biggest life...

A: P(Having a boy) = 1/2, P(Having a girl) = 1/2 P(Having atleast one Girl) = 1 - P(Having no girl) P(H...

Q: Which of the following probability distribution curves has the lowest peak? a. the standard normal d...

A: Solution : We have give that Statment about the probability distribution curve of normal and t distr...

Q: We randomly survey 100 Chinese children living in a rural area. 1. What is the chance that the avera...

A: 1) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively. T...

Q: 17) A shipment of twelve smartphones contains seven with cracked screens. If 18) A small pond contai...

A: Given that, 17. A shipment of twelve smartphones contains seven with cracked screens. If sold in a r...

Q: E. The Johnson family got married a few years ago and they planwoH (b to have five children. They ha...

A: Probability of girl = 0.5 Probability of boy = 0.5

Q: There are 400 students in the first year class of an engineering college. The prob- ability that any...

A: