3. Suppose the force acting on a column that helps to support a building is normally distributed with mean 15 kips and standard deviation 1.25 kips. a) What is the probability that the force is at most 18 kips? b) What is the probability that the force is between 10 and 12 kips? c) What is the probability that the force differs from 15 kips by at most 2 standard deviations?

Q: Suppose that in a certain Senior High School the average height of male students is 155.9 cm with…

A: GivenMean(μ)=155.9standard deviation(σ)=20.4sample size(n)=40

Q: Assume that the heights of women are normally distributed with a mean of 64.1 inches And a standard…

A: Given: Population mean=μ=64.1. Population standard deviation=σ=2.3. The sample size is n=64.

Q: 2. The mean weight of 1000 students at a certain high school is 140 pounds and the variance is 100…

A:

Q: The annual rainfall amount in Izmir is approximately normally distributed with mean 102.108 cm and…

A:

Q: A ECG is a record of how the electrical signal travels through the heart muscle and consists of…

A: Given, μ = 400 σ = 20 Here, We use the formula for Z score. Z = (X - μ)σ   To find, a. P (X >…

Q: Assume the probability that a maple tree at age 5 grows less than 150 cm is equal to 0.3. If the…

A: Given Data: Let X represent the height of the maple tree P(X<150)=0.3 σ=64=8

Q: suppose that vehicle speeds at an interstate location have a normal distrubution with the mean equal…

A: Solution-: Given: μ=112km/h,σ=12.9km/h We want to find, (a) The z score for a speed of 103 km/h ?…

Q: Suppose that students who finished JHS in a public school get an average of 5.6 hours of sleep each…

A: Mean(µ) = 5.6 Standard deviations (σ) = 1.7 n = 35

Q: The bearing for any computer hard drive can be modeled as a random variable with mean 0.225 mm and…

A: Let X be random variable that bear hard drive for any computer.   We are given X~N(μ, σ2) with mean,…

Q: The height of the dogs in a pet shop is normally distributed with the average height of 25 cm and…

A:

Q: Assume that the women's heights are normally distributed with a mean of 63.7 inches and a standard…

A:

Q: The number of working hours before failure is approximately normally distributed. What is the…

A:

Q: Assume that the weights of individuals are independent and normally distributed with a mean of 160…

A:

Q: 2. Suppose that the current measurements in a strip of wire are assumed to follow a normal…

A: Let X denote the current measurements in a strip of wire. Given that X follows N(mean = 10, SD = 2),…

Q: The height of the dogs in a pet shop is normally distributed with the average height of 25 cm and…

A:

Q: Females have pulse rates that are normally distributed with a mean of μ=76.0 beats per minute and a…

A: Let X be a continuous random variable of pulse rates of females (beats per minute) is normally​…

Q: The number of people sick from imported meat products in a certain city was found to be normally…

A: Given that, The number of people sick from imported meat products in a certain city was found to be…

Q: A detergent company finds that a family in the country washes an average of 910 kilograms of clothes…

A: Given that: X is normal Distributed with mean µ = 910.0 and standard deviation σ = 85.0 By using…

Q: The accountants of a known auditing firm have a mean daily salary of 850 Php with a standard…

A: Given: μ=850σ=82X~Nμ=850, σ=82P(X>950)=?

Q: . An electronic company in Laguna manufactures resistors that have a mean resistance of 120 ohms…

A: Note: Please repost 3rd question as i can answer only 1 question as per my policy. 2) Given data,…

Q: Assume that the average weight of an NFL player is 245.7 pounds with a standard deviation of 34.5…

A: Given - The average weight of an NFL player is μ = 245.7 pounds with standard deviation σ =34.5…

Q: Suppose that an airline uses a seat width of 16.1 in. Assume men have hip breadths that are normally…

A: Consider X be a random variable which follows normal distribution indicates the hip breadths of men.…

Q: 3. The average cholesterol content of a certain brand of eggs is 215 milligrams, and the standard…

A: Given mean μ = 215standard deviation σ = 15we need to calculate two parts of probability

Q: The weights of the fish in a certain lake are normally distributed with a mean of 11 lbs. and a…

A: From the provided information, Mean (µ) = 11 Standard deviation (σ) = 12 X~N (11, 12) Here X be a…

Q: Suppose the distribution of speeds of cars traveling on the I-5 in California is nearly normal with…

A: Solution:a.The percentage of cars travel above the speed limit is obtained below:Let the random…

Q: Some sources report that the weights of full-term newborn babies in a certain town have a mean of 8…

A:

Q: suppose the walking step lengths of an adult males are normally distributed with a mean of 2.7 feet…

A: Given that  Mean=μ=2.7 Standard deviation=σ=0.3 Sample size=n=70 X~Normal(μ=2.7,σ=0.3)

Q: Suppose that an airline uses a seat width of 17.2 in. Assume men have hip breadths that are normally…

A: Let "X" be the hip breadths of men.

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 15.5…

A: As per Bartleby guideline expert have to answer first question only dear student please upload other…

Q: assume that woman have diastolic blood pressure measures that are normally distributed with a mean…

A: From the given information, let us define the random variable X as diastolic blood pressure levels…

Q: Assume that females have pulse rates that are normally distributed with a mean of u=74.0 beats per…

A: Mean = 74.0 Standard deviation = 12.5 Sample size =

Q: Suppose the weight of new born baby is approximately normally distributed with a mean of 4.70 pounds…

A: Given information: μ=4.70, σ=0.40n=25

Q: In a certain factory average length of products is 26 cm and standard deviation is 6 cm.…

A: Given Information: Distribution of lengths of products in a certain factory is assumed to be normal.…

Q: A 120-watt fluorescent light has an average brightness of 1986 lumens, with a standard deviation of…

A: Given that,  μ=1986,σ=94 The probability that a 120-watt fluorescent light will have a brightness…

Q: If the gondola is filled with 25 randomly selected​ skiers, what is the probability that their mean…

A: Mean = 180 Standard deviation = 44 Sample size = 25

Q: A geologist is making guesses about the mean length of fossil teeth of a certain species found in a…

A: From the provided information,

Q: a certain machine manufactures electrical resistors that have a mean resistance of 40 ohms and a…

A: According to the given information in this question We need to find the probability that the…

Q: Assume the number of physical damage losses for houses as a result of hurricane Irma in Barbuda is…

A:

Q: f 12 items are chosen at random, what is the probability that their mean length is less than 11.4…

A: Items have normally distributed length with mean 11.6 inches and standard deviation as 2.1 inches. X…

Q: The reading speed of second grade students in a large city is approximately normal, with mean of 91…

A: Given that  c... we have to find the probability that a random sample of 26 second grade student…

Q: Some sources report that the weights of full-term newborn babies in a certain town have a mean of 7…

A: Given Solution:

Q: The weights of the fish in a certain lake are normally distributed with a mean of 15 lb. and…

A: Consider X be a random variable which follows normal distribution indicates the weight of fish. The…

Q: A soft drink vending machine is set to dispense an average of 200 milliliters per cup. If the amount…

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

Q: Suppose that skiing injuries occur at a constant rate, are statistically independent of each other,…

A: Let p be the probability of a skier getting injured. So the value of p is calculated as:…

Q: A company manufactures two types of cables, brand R and brand Q. Brand R has mean breaking strength…

A: A company manufactures two types of cables, brand R and brand Q. Let X be the breaking strength of…

Q: Suppose the average speeds of passenger trains traveling from Colombo to Jaffna  are normally…

A: Given,       Mean μ=88       Standard deviationσ=6.4   1) Required probability is Px<70…

Q: Assuming that the weights of people are normally distributed with mean of 70 kg and standand…

A: Given : Assuming that the weights of people are normally distributed with mean of 70 kg and standand…

Q: Assume that females have pulse rates that are normally distributed with a mean of μ=74.0 beats per…

A: From the given information,   Mean = 74 Standard deviation = 12.5

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.