A specific car model as a transmission with a warranty of 40,000 miles. Life of the usual transmission has a normal distribution with a mean of 72000 miles and a standard deviation of 13000 miles. 1) What percentage of the transmissions will fail before the end of the warranty period? 2) What percentage of transmissions will be good for more than 100,000 miles? 3) What is the probability that a transmission will last between 40,000 miles and 100,000 miles?

Q: A study indicates that 18- to 24-year olds spend a mean of 145 minutes watching video on their…

A: given data normal distributionμ = 145 minutesσ = 20 minutes

Q: The time it takes to grade an test has a mean of 5.45 minutes and a standard deviation of 1.2…

A: Given that.   X~N( μ , ?)   μ=5.45    , ?=1.2   Z-score =( x - μ )/?

Q: A large population has a mean of 60 and a standard deviation of 8. A sample of 50 observations is…

A: GivenMean(μ)=60standard deviation(σ)=8sample size(n)=50

Q: 3. A certain type of rope has an average breaking strength of 1,200 pounds. If the standard…

A: Let X be the random variable from normal distribution with average (μ) = 1200 and standard deviation…

Q: deviation is 50 litres (and is normally distributed), what is the probability that a household will…

A: Let X be the random variable from normal distribution with average or mean (μ) = 210 liters standard…

Q: A survey found that women's heights are normally distributed with mean 63.6 in and standard…

A: Given Information: Mean μ=63.6 Standard deviation σ=2.5 A branch of the military requires​ women's…

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 783 grams and a standard…

A: It is given that the mean is 783 and the standard deviation is 24.

Q: Given the mean is 120 minutes and the standard deviation is 30 minutes. What is the probability that…

A: The mean is 120 minutes and standard deviation is 30 minutes.

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A: Central limit theorem: The central limit theorem implies that the distribution of the sample means…

Q: A sample of 235 students was taken for an exploratory study. Each member of a random 35 of these…

A: Since the sample size is sufficiently large, and the population standard deviation is known, the…

Q: The average number of miles driven on a full tank of gas in a certain model car before its​ low-fuel…

A: It is given that the mean is 399 and the standard deviation is 36.

Q: rage life of a certain steel-belted radial tire is advertised as 60,000 miles. Assume that the life…

A: The corresponding z-value needed to be computed is:

Q: A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2…

A: Mean = 39 Standard deviation = 2

Q: The World Health Organization's (W.H.O.) recommended daily minimum of calories is 2600 per…

A: given data  W.H.O. minimum calories = 2600 μ = 2460σ = 500n = 49P(x¯ >2600) = ?

Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…

A:

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: Assume the probability that a maple tree at age 5 grows less than 130 cm is equal to 0.1. If the…

A:

Q: The number of newspapers sold daily at a kiosk is normally distributed with a mean of 350 and a…

A: Solution-: Given: μ=350,σ=50 We want to find, (i) P(more newspapers are sold on Wednesday than on…

Q: The monthly utility bills in a city are normally distributed with a mean of $100 and a standard…

A:

Q: find the mean and standard deviation of the number of heads obtain

A: Let q be the probability of obtaining tail and p be the probability of obtaining head. Probability…

Q: Provide all necessary computations and a properly labeled curve in asnwering the following. Sam…

A:

Q: Traveling between two campuses via shuttle bus takes, on average, 28 minutes with a standard…

A:

Q: The average number of dropouts for a school district has been 300 per year with a standard deviation…

A:

Q: If X is a number on standard dice roll, find the standard deviation (o) of X.

A: The random variable is a number on a standard dice roll.If a standard die is rolled, then its…

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: The mean is 120 minutes and the standard deviation is 20 minutes.

Q: A line waiting for tickets to an event has a normal distribution and the mean time is 23 minutes.…

A: Population mean, μ=23 Population sd, σ=4

Q: Find the probability that an observation taken from a standard normal population will be more than…

A: We have to find given probability..

Q: 3) An F-1 race has an average length of 305 kilometers with a standard deviation of 72 kilometers.…

A:

Q: . The average number of liters of fresh milk that a person consume in a month is 18 liters. assume…

A: It is given that the consume milk of a person follows a normal distribution with parameters, mean of…

Q: A particular fruit's weights are normally distributed, with a mean of 452 grams and a standard…

A: Given: μ = 452 σ = 24 Thus, X ~ N(μ = 452, σ = 24) The probability that a randomly selected fruit…

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Q: The Australian Emergency department reports that the average time it takes to respond to an…

A:

Q: ortion of firms will earn a return between 4% and 8%? B   To the nearest percent find the…

A: given: mean (μ)= 7.5 standard deviation(σ)=2.5

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.