A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 192.2-cm and a standard deviation of 2.5-cm. Find P14, which is the length separating the shortest 14% rods from the longest 86%. P14 = -cm

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A:

Q: The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test…

A: Given,mean(μ)=22.2standard deviation(σ)=4.9

Q: A carpenter buys GHC 500 worth of nails at GHC 50 per pound and GHC 50 worth of nails at GHC 10 per…

A: Harmonic mean: it is defined as the reciprocal of the mean of reciprocals. HM=n∑1X

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A:

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: We have given that Mean(µ) = 221.1Standard deviations (σ) = 2X ~ N (µ, σ )= N(221.1, 2)

Q: Gorge  gets 83 or 82  as his grades on his three main subjects Constrict a  sampling distribtuon of…

A: Gorge  gets 83 or 82  as his grades on his three main subjects

Q: Find the variance and standard deviation to one decimal place of the ages, in years, of these five…

A: There are total n = 5 observations.

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A:

Q: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2  and sample standard deviation...

Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

A: Given data 0,0,1,1,2,4

Q: Find the sample standard deviation. The top five scores on last semesters midterms were 90 97 100 90…

A: The question is about measures Given : Data - 90, 97, 100, 90, 93   To find : Sample std. deviation

Q: sume that the readings on the themometers are normally distributed with a mean of 0" and standard…

A: We have find givan normal distribution...

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: It is given that the mean is 116.7 and the standard deviation is 2.

Q: The Transport Network Vehicle Service (TNVS) drivers have an average booking of 22 rides a day with…

A: Here we have given the information, using this information we have to find the standard error of the…

Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…

A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…

Q: Find the range, the standard deviation, and the variance for the given samples. Round nointeger…

A: Given data n=11 69,88,94,99,84,67,98,77,71,62,93

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The highway mileage (mpg) for a sample of 8 different models of a car company is given as:19, 23,…

Q: give the sample standard deviation of this data set: 20, 25, 35, 40

A: Sample Standard deviation:   If the standard deviation is calculated for sample then it is called as…

Q: A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are…

A: Given : x¯(mean length)=8 cm σ(standard deviation)=0.10 cm Let  x ( length of the bolt coming from…

Q: On a standardized exam, the scores are normally distributed with a mean of 120 and a standard…

A: Mean(μ)=120 Standard deviation(σ)=10 Raw score(X)=115

Q: Adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. Find the…

A: given data, μ=69.0σ=2.8height of a man with a z-score of -1.75 =?

Q: Provide an appropriate response. A manufacturer claims that the mean lifetime of its fluorescent…

A:

Q: ind the range, the standard deviation, and the variance for the given samples. Round noninteger…

A: The given sample observations are:74, 70, 79, 81, 89, 72, 66, 78, 77, 73, 95 The objective is to…

Q: display of data to find the standar

A: Given,

Q: Use the five-step procedure to test the research hypothesis that the mean weight in men in the…

A: H0 : ? =191 H1 : ? >191

Q: The swim instructor's class wanted to have a competition to see who could hold the their breadth the…

A: The swim instructor timed all swimmers and wrote down their times in seconds as follows:…

Q: Given the sample data 85 85 85 85 85 85 85. Find the variance and the standard deviation of the…

A: Let X denote the sample data. The standard deviation of the data can be calculated as SD =…

Q: dying the number of gallons of gasoline purchased per customer at self-service pumps. The mean…

A:

Q: The heights of adult women are normally distributed with a mean of 64.5 inches and a standard…

A: The question is about normal distributionGiven :Mean height of adult women (  ) = 64.5…

Q: USE A CALCULATOR  In the 1992 presidential election, Alaska’s 40 election districts averaged 1,956.8…

A: Hey, since there are multiple subpart questions posted, we will answer first three subpart…

Q: A forest ranger researching ecosystem recovery follow-ing forest fires collected data on a large…

A: 1 feet = 12 inches Mean =3.2 feet Standard deviation =0.6 feet

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Introduction:The sampling distribution of the sample mean, X̅ from a population with normal…

Q: 6. Find the mean, median, range, standard deviation, and variance for the given data. Use the…

A: Store the given data in vector X in MS-Excel. X 18 4 12 17 22 6 27 14 We have…

Q: Consider the data:  10, 7, 9, 13, 11, 13, 14.  (Show your work.) a)Determine the mean.…

A:

Q: Find the range, the standard deviation, and the variance for the given samples. Round noninteger…

A: