The Level of nítrogen oxides (NOX) in the exhaust of cars of a particular model is normally distributed with mean o.2 grams per mile (g/mi) and standard deviation of o.05 g/mi. Ifthe government regulations call for NOX emissions no higher than 0.3 g/mi (tess than 0.3), what is the probability that a singte car of this model meets the NOX requirement? a. 0.3264 b. 0.9500 C. 0.0228 d. 0.9772 e. 0.6736

Q: The diameter of a brand of tennis balls is approximately normally distributed with a mean of 2.45…

A:

Q: In a large manufacturing of mobile phones, it was detected that 20% have batteries with voltage…

A: Define the Random Variable, X  : Voltage of a mobile phone Assume that , X ~ N(µ,σ2) So, Z = X - µσ…

Q: •What is the mean kinetic energy? - What is the variance of the kinetic energy? What is the…

A: Here use formula of mean and variance of uniform distribution

Q: The heights of water spinaches, Ipomoea aquatica in Malaysia without fertilizer application are…

A: PX>35=1-Pz<35-205=1-Pz<3=1-0.9987=0.0013

Q: The lifetime of a particular component is normally distributed, with a mean of 1000 hours, and a…

A: From the given information, let us define the random variable X as lifetime of a particular…

Q: A certain machine makes electrical resistors having a mean resistance of 40 ohm and a standard…

A: Given: The mean resistance of electrical resistors is μ=40 ohm. The standard deviation is σ=4 ohm.…

Q: The incoming freshman class at North Carolina State University had a mean unweighted GPA of 3.81…

A: Given: Sample size (n) = 100 Population mean GPA score μ=3.81 Population standard deviation σ=0.36

Q: Wright et al. used the 1999-2000 National Health and Nutrition Examination Survey (NHANES) to…

A:

Q: The Acme donut company sells donuts in boxes of one dozen donuts advertised to weigh one pound. The…

A: Let X be the donuts weight  X~N(μ=1.37, σ2=0.32) We want to find the probability  P(X<1)=? Note:…

Q: Q2/ The speed of a file transfer from a server on campus to a personal computer at a student's home…

A:

Q: The life of a semiconductor laser at a constant power is normally distributed with a mean of 7500…

A:

Q: An article in the Annals of Botany investigated whether the stem diameters of the dicot sunflower…

A: We have given that  Mean μ = 35 Standard deviation σ = 3 Z-score, z = (x – μ) / σ Note: According to…

Q: The average rainfall, recorded to the nearest hundredths of a cm, in Roanoke, Virginia for the month…

A:

Q: If systolic blood pressure (SBP) in the population is normally distributed with mean = 120 mm Hg and…

A: X~N(μ,σ)μ=120σ=15

Q: A man height and weight  are nomally distributed with mean u= 70 inches and standard deviation a =…

A:

Q: The amount of time between taking a pain reliever and getting relief is nomally distributed with a…

A: Let "X" be the time between taking the medication and getting relief.

Q: A canning company that cans pineapple juice has a machine that automatically fills 16-ounce cans.…

A: Given data,Mean(μ)=16sd (σ)=1P(X>16)=?

Q: An industrial sewing machine uses ball bearings that are targeted to have a diameter of 0.75 inch.…

A: Note:- 1) As per our policy, we can answer only three subparts of a question. Please make a new…

Q: Find the standard deviation of times taken for germination for cauliflower seeds. C

A: Let , X→N(μ=7 , σ) We have  , the exactly 90% of the cauliflower seeds germinate in 6 days or more.…

Q: Previous studies showed that the lifetime of solar panels is normally distributed with a mean of 27…

A:

Q: A Survey among Seniors revealed that the number of hours spent Studying the week before final exams…

A: Given Mean=25 Standard deviations=7

Q: The volumes of buttermilk in quart bottles are normally distributed with a mean of 32.3 oz and a…

A: Given, mean = 32.3 standard deviation = 1.2 x < 32 oz

Q: The weight of a tub of ice-cream from a certain brand is normally distributed with mean of 250g and…

A:

Q: In a 15-day period, the amount of growth for a population of sunflower plants was found to be a…

A: Here it is given that the growth of sunflower is normally distributed with mean=3.18 and SD=0.52…

Q: the breaking of a particular rope is normally distributed, with the mean of 350 lbs. and a standard…

A:

Q: The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of…

A: Let X be the length of the aluminum coated sheets. X ~ N(μ, σ) Given,  Mean, μ = 30.05 inches…

Q: The shelf life of a battery produced by one major company is known to be normally distributed, with…

A:

Q: The mass, m, of a particular hand-laid fiberglass part is normally distributed with a mean of 66 kg…

A: Given,mean(μ)=66 kgstandard deviation(σ)=5kg

Q: If an experimental automobile prototype running at 50 miles per hour expends an average of 120…

A:

Q: The distribution of the amount of water used per wash cycle, in gallons, by a particular brand of…

A: Given information Mean (µ) = 4 Gallons Standard Deviation (σ) = 0.2 Gallon Probability that more…

Q: The personal office at a large electronics firm regularly schedules job interviews and maintains…

A: Given, Mean = 34 Standard deviation = 7 Sample size = 9   The objective to is find the probability…

Q: The mass, m, of a particular hand-laid fiberglass part is normally distributed with a mean of 66 kg…

A: Let X denote the mass of a particular hand laid fiberglass part and it follows normal distribution…

Q: Scores on a recent NYS Standardized Exam were normally distributed with a mean of 77.6 and a…

A: LetX: scores on a recent NYS standardized exam X has normally distributed i.e. X~N(μ,σ)     where…

Q: A population of Gala apples has a mean m=0.40 lbs and a standard deviation s=0.16 lbs. For a sample…

A: Solution: Let X be the variable. From the given information, m=0.40, s=0.16 and n=20.

Q: In a particular city, the weight of newly born babies is normally distributed with a mean of 3.5 kg…

A:

Q: In a human factor experimental project, it has been determined that the reaction time of a pilot to…

A: We have to find probabaility

Q: he weight of the package is normally distributed with a mean of 650 g and a standard deviation of 42…

A: Given that  The weight of the package is normally distributed with a mean of 650 g and a standard…

Q: The amounts of time per workout an athlete uses a stairclimber are normally​ distributed, with a…

A:

Q: The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002…

A: Given, μ=0.002σ=0.0004 X be a random variable that belongs the diameter of the dot produced by…

Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately…

A: Given,mean(μ)=800standard deviation(σ)=100sample size(n)=29

Q: A manufacturer of a low-tar cigarette claims that its cigarettes contain an average of 16.3 mg. of…

A: Given information- Population mean, µ = 16.3 mg Population standard deviation, σ = 3.1 mg Let, X be…

Q: Oranges chosen at random have a mean mass of 210 grams and standard deviation of 35 grams. Assuming…

A: We have to find  probability  for given data

Q: The personal office at a large electronics firm regularly schedules job interviews and maintains…

A: Given, μ=34 minutesσ=7 minutesn=9

Q: The time needed to complete a final examination in a particular college course is normally…

A:

Q: The recovery time from COVID19 is normally distributed with a mean of 12 days and a standard…

A: The random variable recovery time follows normal distribution. The population mean is 12. The…

Q: (a) On a farm, at 20 weeks, the weights of roosters follow an approximately normal distribution with…

A: Given data: mean =  2.16 kg variance = 0.09 kg2

Q: A local fast food restaurant advertises an average service time of u = 3 minutes with a standard…

A: Let X be the random variable from normal distribution with mean (μ) = 3 and standard deviation (σ) =…

Q: A local fast food restaurant advertises an average service time of u = 3 minutes with a standard…

A: Given Data : Population Mean,μ = 3 Population Standard Deviation,σ = 0.39

Q: a. Cars are passing through a checkpoint. Assume the speeds are normally distributed such that the…

A:

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.