When a robot welder is functioning properly the cylinders it produces burst (on average) at 3400 psi, with known standard deviation 100 psi.  Determine the 3-Sigma mean control chart limits.  Test lot sample sizes are n=4 cylinders randomly selected from the production line. Centerline = 3400 Upper Limit = 3550   Lower Limit = 3250 What is the probability that random variation will exceed the ± 3-sigma limits ____. (four decimal places with zero before the decimal)

Q: Weights of women in one age group are normally distributed with a standard deviation of 18 lb. A…

A: The given data is as follows:Population standard deviation, Confidence level, Margin of Error,

Q: A population has a mean μ = 86 and a standard deviation o=27. Find the mean and standard deviation…

A: GivenMean(μ)=86standard deviation(σ)=27sample size(n)=24

Q: The durations of the mating calls of a population of tree toads are normally distributed, with mean…

A:

Q: ber of ants per acre in the forest is normally distributed with mean 45,289 and standard deviation…

A: The z score can be calculated as: z=x-μσ   The first quartile represents 25% of the data and 75% of…

Q: The age of the students enrolled in a large university is normally distributed with mean u and…

A: Given, meanμ=20standard devaition σ = 4sample size n =  20Sample mean = 22.2

Q: A simple random sample of 39 men for me normally distributed population results and a standard…

A: Given, sample size = n = 39 sample standard deviation = s = 8.6 Population standard deviation = =10…

Q: The ages of a group of 150 randomly selected adult females have a standard deviation of 17.4 years.…

A:

Q: Assume that the helium porosity level (measured in percentage) of coal samples taken from any…

A: Population standard deviation =0.75 Width of C.I =0.40

Q: The area under the normal curve is 10. Select the correct response: O True False

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: A population has mean  =μ19  and standard deviation  =σ5 . Find  μx  and  σx  for samples of…

A:

Q: Listed below are the numbers of years that archbishops and monarchs in a certain country lived after…

A: The data shows the number of years that archbishops and monarchs in a certain country lived after…

Q: total cholesterl in children ag 10 to 15 with a mean of 91 mg and a standard deviation 22.4 in a…

A: Sample size n =20 Population mean μ =91 Population standard deviation =22.4

Q: A random variable X following normal distribution with mean 45 and standard deviation 8. For a…

A: Solution: From the given data, For a normal random variable X Mean (μ) = 45 Standard deviation (σ) =…

Q: A population of values has an unknown distribution with u = 203.1 and o = 34.1. You intend to draw a…

A: We have given that  Population  mean μ=203.1      Population standard deviation ?=34.1   Sample size…

Q: The ages of a group of 120 randomly selected adult females have a standard deviation of 18.1 years.…

A: In statistics, standard deviation is defined as a measure of variability, that indicates how distant…

Q: The length of the population of full grown scorpions  of  a certain vaiety have a mean of 1.96…

A:

Q: sample is selected from a population with mean ? = 99 and standard deviation ? = 10. For which of…

A: According to the central limit theorem, if the sample size is sufficiently large, i.e., n =30 or…

Q: The length of human pregnancies from conception to birth virus according to a distribution that can…

A:

Q: A random variable follows normal distribution with mean 24 and standard deviation 4. Find z score…

A: Solution: From the given data, For a normal population, Mean μ = 24 Standard deviation σ = 4

Q: The thickness (in millimeters) of the coating applied to hard drives is one characteristic that…

A:

Q: Water permeability of concrete can be measured by letting water flow across the surface and…

A: given data normal distributionμ = 1000σ = 150sample size (n) = 10

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A:

Q: A population of values has a normal distribution with t = 242.1 anda = 3.8. You intend to draw a…

A:

Q: a)Calculate the variance of the random variable X which is the mean of the weights of the 77 AMs…

A: As per our guidelines , we are allowed to answer three  sub-parts only Following Information is…

Q: The pulse rates of 147 randomly selected adult males vary from a low of 41 bpm to a high of 117 bpm.…

A: Solution-: Given: c=0.98, n=147, lowest value=41 bpm, highest value=117 bpm, E=4bpm We want to find…

Q: Two types of plastic are suitable for an electronics component manufacturer to use. The breaking…

A:

Q: A variable has a population mean of μl: = 100 and a population standard = 27. deviation of = The…

A: From the provided information,

Q: The ages of a group of 125 randomly selected adult females have a standard deviation of 16.4 years.…

A: Given Information: Standard deviation (S) = 16.4 years Error (e) = 0.5  Confidence level = 99%  The…

Q: cenario: The Body Mass Index (BMI) is measured for a random sample of men and women. Men 24 23.5…

A: Answers are   x-bar = 22.75…

Q: A population of values has an unknown distribution with u random sample of size n = 201. What is the…

A: GivenMean(μ)=211standard deviation(σ)=21.3sample size(n)=201

Q: If adult male cholesterol is normally distributed with Me- 150 and SD-15, what is the probability of…

A:

Q: To build a 95% CI for the mean of a population, you take a random sample of 13 values and find that…

A: We have given that the random sample of size 13, sample mean 225.3 and standard deviation 18.

Q: e ages of a group of 122 randomly selected adult females have a standard deviation of 18.1 years.…

A: standard deviation()=18.1Margin of error(E)=0.5confidence level=90%

Q: Listed below are the numbers of years that archbishops and monarchs in a certain country lived after…

A: The data shows the number of years that archbishops and monarchs in a certain country lived after…

Q: Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to…

A: given data σ = 4.195% ci E = 5n = ?

Q: Known:  Variable X: Mean = 6, Standard Deviation = 0,6 and Normal Distribution Variable Y: Mean…

A: Given :  Variable X: Mean = 6, Standard Deviation = 0,6 and Normal Distribution Variable Y: Mean =…

Q: What is the mean u and standard deviation o of the following normal distribution? 34 40 46 52 58 64…

A: For a normal distribution, the mean is symmetrically distribution and the data points are 1 standard…

Q: A random variable x is distributed normally with mean 75 and standard deviation 16. What is the…

A:

Q: The ages of a group of 137 randomly selected adult fermales have a standard deviation of 16.5 years.…

A:

Q: The ages of a group of 148 randomly selected adult females have a standard deviation of 17.1 years.…

A: Given information- Population standard deviation, σ = 17.1 years Confidence interval = 0.98…

Q: The Gas company bought a new machine. The weight of metal components in it are normally distributed…

A: Assume, X be the random variable representing the weights of metal components (in lbs). It is…

Q: rue standard deviation of RM weight gain is  ?y  = 2.07 pounds. The true (unknown) mean OC weight…

A: Hey there! Thank you for posting the question.Since you have posted a question with multiple…

Q: Time taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal…

A: Given : Time taken by a randomly selected applicant for a mortgage to fill out a certain form has a…

Q: The times taken by workers to assemble a certain kind of cell phone are normally distributed with…

A:

Q: The ages of a group years. Assume thal ages domly selected aduit females have a standard devlation…

A: