Question 8 The average monthly mortgage payment including principal and interest is $855 in the United States. f the standard deviation is approximately $222 and the mortgage payments are appreaey norma distributed. find the probability that a randomly selected monthly payment is less than $1110. OA.0.87465 OB.0.12535 OG. 0.62535 OD.0.37465

Q: QUESTION 13 k. Use Poisson's distribution to calculate the A life insurance salesman sells on the…

A: We have given that,  X be the random variable from Poisson distribution with mean λ = 4  i.,…

Q: The annual rainfall in a city is normally distributed with a mean of 128 cm, and a standard…

A: GivenMean(μ)=128standard deviation(σ)=13

Q: The probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Let, X is the number of houses that were burglarized. X~Binomialn=50,p=0.05

Q: Question 5 A radar unit is used to measure speeds of cars on a motorway. The speeds are normally…

A: The solution to the given question is explained below.

Q: Question 5 The mean number of ski injuries at Mont Tremblant that require treatment follows a…

A: Given  X~Pois(λ=3) P(X<2)=?

Q: Furnace repair bills are normally distributed with a mean of 265 dollars and a standard deviation of…

A: Given

Q: Question No. 5 "Chief Grill" is a local restaurant, its annual data shows that the average sale of…

A: Given, Mean μ =1200 Standard deviation σ = 102 a) =P(x< 1000)= P ( x- μ /σ < 1000 - μ /σ )=P(z…

Q: The lifetime of a certain battery has an unknown distribution with mean value of 8 hours and…

A: Points on sampling distribution of the sample mean: If the true population distribution of a random…

Q: QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and…

A:

Q: Find the probability that a randomly selected person at the hot springs stays longer then 93…

A: Given Data Population Mean,μ = 68.0 Population Standard Deviation,σ = 18.0

Q: Question 4 (a) At a certain community college, the time that is required by candidates to complete…

A: We want to find the probability  A) P(56<x<60) Note: According to bartleby experts question…

Q: The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation…

A: (a)  The probability of a pregnancy lasting 309 days or longer is 0.0038, which is obtained below:…

Q: QUESTION 13 A research worker wants to determine the average time it takes a mechanic to rotate the…

A:

Q: QUESTION 8 A research worker wants to determine the average time it takes a mechanic to rotate the…

A: Given : Using Z table or excel command =NORMSINV(0.99) we get critical value,

Q: Question 7 If the heights of women are normally distributed with a mean of 64 inches and a standard…

A:

Q: a. What is the probability that a laser fails before 6060 hours?  b. If 9 lasers are used in a…

A: The lifetime of a semiconductor laser at a constant gower is normally distributed with a mean of…

Q: QUESTION 5 The line width for semiconductor manufacturing is assumed to be Normally distributed with…

A: We have given that  Mean(µ) = 0.5Standard deviations (σ) = 0.04 Since the distribution is normal…

Q: I bet $100 on a horse A and $100 on horse B in separate races. On each horse, my expected dollar…

A: Given:   Payoff on horse A = X = $100 Payoff on horse B = Y  = $100 E( X) = 60 E(Y) =  60 SD ( X ) =…

Q: QUESTION 19 Consider the price has a normal distribution. The price Mean is 84, and the price…

A: Let X be the price. X~N(μ,σ)  where μ=84 g                              σ=8

Q: QUESTION 17 Consider the price has a normal distribution. The price Mean is 83, and the price…

A:

Q: QUESTION 9 Suppose that the average annual revenue of a small business is $150,000 with a standard…

A:

Q: The salaries at a corporation are normally distributed with an average salary of $19,000 and a…

A: The provided information are: Population mean (µ) = 19000 Population standard deviation (σ) = 4000…

Q: The duration of a lunch break for one employee at a manufacturing company follows a normal…

A:

Q: QUESTION 13 A life insurance salesman sells on the average 6 life insurance policies per week. Use…

A:

Q: Question 7 The length of time needed to complete a certain test is normally distributed with mean 52…

A:

Q: Question 3 A set of final examination grades in an introductory statistics course is normally…

A: Given problem Given that A set of final examination grades in an introductory statistics course is…

Q: QUESTION 4 An astronomer wants to measure the distance from his observatory to a distant star.…

A: Given, mean = 10, sd = 2 , e = 0.5

Q: QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and…

A: Let, X=the service time Given that X follows a normal distribution with mean=50 and standard…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: Given data mean=$40,000 standard deviation=$5000

Q: Question 6. The downtime per day for a certain computing facility averages 4.0 hours, with a…

A:

Q: QUESTION 3 A certain type of engines lasts, on average, 4.0 years with a standard deviation of 0.5…

A: Obtain the Z-score of the random variable X equals 3.6. The Z-score of the random variable X…

Q: Question 1 A barometer is used to measure average daily atmospheric pressure. The daily pressure is…

A: Given that,  X~N(mu=1012hPa, sigma=12hPa)  We have to find P(X>1030 hPa) and P(1002…

Q: QUESTION 5 A manufacturer of a lightbulb claimed that its lightbulbs have a mean lifetime of 700…

A: GivenMean(μ)=700standard deviation(σ)=120sample size(n)=144

Q: Two companies, A and B, drill wells in a rural area. Company A charges a flat fee of 3669 dollars to…

A: Given , Mean ll =250 tco-1                      Standard deviation =45tco-1 Company A =$3669 Company…

Q: QUESTION 3 Consider the price has a normal distribution. The price Mean is 99, and the price…

A:

Q: Question.9. From the following information, ascertain which project is more on the basis of standard…

A: The formula for finding Standard deviation is               S.D=∑(xi-x¯)2.p where,          x¯=∑xi n…

Q: QUESTION 6 The lifetime of a certain battery is normally distributed with mean value of 10 hours and…

A: X~Normally distributionMean=ν=10 hoursStandard deviation =σ=1 hourn=16⇒Mean for all batteries…

Q: QUESTION 10 An investor has decided to form a portfolio by putting 3596 of his money into Google's…

A: The proportion of investments in the stocks, Google and Apple are:   The expected returns of the…

Q: Question 6 Assume that the readings at freezing on a bundle of thermometers are normally…

A: The question is about normal dist. Given : Popl. mean reading of thermometer ( μ ) = 00 C Popl. std.…

Q: QUESTION 14 The line width for a semiconductor manufacturing is assumed to be normally distributed…

A: Answer:-  Let, X be the random variable follows N(9,2.1).

Q: Question 07 The average number of years a person takes to complete a graduate degree program is 3.…

A: We want to find the following probability a) More than 4 years to complete the program   b) Less…

Q: QUESTION 19 A new electric car has batteries that can power the car for a certain amount of time. Of…

A: Given,mean(μ)=28standard deviation(σ)=10and the cars operation time is normally distributed

Q: QUESTION 34 4(c) From several years' records, a fish market manager has determined that the weight…

A: Given: From several years records a fish market manager has determined that the weight of deep sea…

Q: Question 19: The range of a battery of a newly produced  Electric vehicle is normally distributed…

A:

Q: QUESTION 13 A life insurance salesman sells on the average 5 life insurance policies per week. Use…

A: Answer - Given, A life insurance salesman sells on the average  5  life insurance policies per week.…

Q: Question 5 Weights of a certain model of fully loaded gravel trucks follow a normal distribution…

A: Given: The mean weight of a certain model of fully loaded gravel trucks is μ=6.4 tons. The standard…

Q: QUESTION 11 The service time for customers coming through a checkout counter has mean 51.4 seconds…

A: We have given that  mu=51.4 ,sigma=6.8 and n=64 Z-score=(x-mu)/sigma X~N(mu , sigma^2)

Q: Question 14: A bottling company uses a filling machine to fill plastic bottles with an orange juice.…

A: We have to find out given probability...

Q: QUESTION 3 The length of an injection-molded plastic case that holds magnetic tape is normally…

A: Given : μ=90σ=2X~N(μ=90,σ2=(2)2) We want to find,P(X<87 or X>93)=?