A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 114.5-cm and a standard deviation of 1.8-cm. Find P54, which is the length separating the shortest 54% rods from the longest 46%. fem -cm P54 psa

Q: The local aquarium houses sharks of various species. At the aquarium, Manolo is an adult male shark…

A: GivenManolo is an adult male shark withMean(μ)=2.67standard deviation(σ)=0.29lenght(x)=3.1Emma is an…

Q: The weight of a small Starbucks coffer is normally distributed random variable with a mean of 340…

A:

Q: 5. Thirty-two percent of adult Internet users have purchased products or services online. For a…

A:

Q: Recent Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested…

A: Given  X~N( μ =24.8 , ? = 6.2 ) μ = 24.8 , ? = 6.2 Note: According to bartleby experts question…

Q: The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation…

A:

Q: Florida has an average temperature of 80 degrees Fahrenheit with a standard deviation of 3.5…

A: # Given : average temperature of Florida is mu1=80 degrees and standard deviations sigma1=3.5…

Q: A packet of chocolate bar's content is regularly distributed, with a mean of 250 grammes and a…

A:

Q: A data set is formed by recording the sums in 400 rolls of a pair of a dice. A second data set is…

A: Standard deviation:The standard deviation indicates by how much each observation differs from a…

Q: Twenty-five percent of commercial airline accidents are caused by bad weather. If 300 commercial…

A: The mean of the binomial random variable obtained by the formula μ=np, where (n) is the number of…

Q: Ojai is a weather station in the state of California and Seabrook is a weather station in the state…

A: Given information- We have given the data of noontime temperatures recorded among weather stations…

Q: Calculate the range, the variance, and the standard deviation for data that was collected on SAT…

A: The range is the difference between the highest and lowest value of a data set. Range = 57 – 34 = 23…

Q: Engineers must consider the breadths of male heads when designing helmets. The company researchers…

A: From the given information, Head breadths are normally distributed with mean 6.1 in and standard…

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe mig…

A: Given information: The percentage of people having severe migraine headaches is 90%. That is, p=0.90…

Q: The amount of rain falling in Waimea Canyon State Park, Kauai is normally distributed with a mean of…

A: Let x¯ is defined as the mean rain of 16 randomly picked days which follows normal distribution. The…

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

A: mean=145.2cm S.D=2.2cm

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…

A: Given : Let X be a r.v X : Length of items (in inches)  Mean (μ) = 9.6 S.D (σ) = 1.8

Q: At a customer service call center for a large company, the number of calls received per hour is…

A:

Q: The heights of women have a symmetric distribution with a mean of 63 inches and a standard deviation…

A: It is given that the heights of women follows a normal distribution with a mean 63 inches and a…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.6…

A:

Q: qualifying score to join the cheer team?

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A: 1. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The towing capacities (in pounds) of 25 four-wheel drive pickup trucks have a bell-shaped…

A: From the given information, we have mean = 11830 Standard deviation = 2370 We have to find the…

Q: A senior high student commutes daily from home to school. The average time for a one way trip is 20…

A: Given that, μ=20 minutesσ=4 minutes The no.of minutes is the starting point of the longest 10% of…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: X: time spent by a teacher at work in the holidaysX~N(μ,σ)Mean(μ)=20 hoursstandard deviation(σ)=5…

Q: The weight of a small Starbucks coffer is normally distributed random variable with a mean of 365…

A: a) b)

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Note- Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: Six different rain gauges on campus recorded the following precipitations during the month of…

A: Here, x x-x (x-x)2 8.4 -1.63 2.6569 9.8 -0.23 0.0529 11.1 1.07 1.1449 4.6 -5.43 29.4849…

Q: The amount of rain falling in Waimea Canyon State Park, Kauai is normally distributed with a mean of…

A:

Q: Engineers must consider the breadths of male heads when designing helmets. The company researchers…

A: Given data: Head breadths are normally distributed with mean and standard deviation as:…

Q: 1. A biologist found the wingspan of a group of monarch butterflies to be normally distributed, with…

A: Given: Mean= 52.2mm Standard deviation=2.3mm. We standard normal deviation.

Q: Three high school basketball teams measured the heights of all of their basketball players: The…

A: From the provided information, Derby Dragons have a mean height of 72.0 inches that is (µ1) = 72.0…

Q: The commute time for Cypress College students who drive from their home to the college follows a…

A:

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: The lengths of the songs available for download on a website are normally distributed, with a mean…

A: Given: μ=188 secondσ=24 secondX=170 second

Q: Highway driving speeds are normally distributed with a mean of 62.4 and a standard deviation of 10.6…

A: Given information- Population mean, µ = 62.4 Population standard deviation, σ = 10.6 We have given…

Q: What is the probability that the jewelry store will have to pay off on its promise?

A:

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: As per the guidelines, we are only allowed to solve three subparts. Please post the remaining…

Q: According to a study, the salaries of registered nurse are normally distributed with a mean of 56310…

A: Given,mean(μ)=56310standard deviation(σ)=5038

Q: A study found that the heights of college males follow a normal distribution with a mean of 70…

A: Given information- Mean height, μ = 70 inches Standard deviation, σ = 2.5 inches We have to find the…

Q: If a gambler places a bet on the number 7 in​ roulette, he or she has a​ 1/38 probability of…

A:

Q: If the mean height of a full-grown Wookie is 83 inches with a standard deviation of 4 inches, what…

A: Mean=83 Standard deviation =4 Z score =? For x=88

Q: In a certain microwave oven on the high power setting. the time it takes a randomly chosen kernel of…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A city took a survey of 1,550 households to find out how many televisions each owned. The mean was…

A: The margin of error helps in determining the fall of the sample mean within the decided range of the…

Q: Find the mean, variance, and standard deviation with the given picture below.

A: The table below shows the required calculation for mean- Mean (x) ProbabilityPx  x×Px 3 0.1667…

Q: A fitness instructor at a large gym would like to know if the individuals that take fitness classes…

A: Morning steps mean should be greater than Evening

Q: The best male long jumpers for State College since 1973 have averaged a jump of 263.0 inches with a…

A: Given, xM=263 inchesσM =14 inches xF=201.2 inchesσF=7.7 inches Joey's average = 275 inches Carla's…

Q: Rashid is 84 inches tall. If the height of males in the United States is normally distributed with a…

A: Given :                data point = 84                 mean = 70                standard deviation…

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Let X is the gas mileage for a hybrid car. X~Normalμ=57,σ2=3.52

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

A: Given data,Mean μ=843sd    σ=35n=31Find mean of sampling distribution?

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

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.