Suppose that a company ships packages that are variable in weight, with an average weight of 15 lb and a standard deviation of 10. Assuming that the packages come from a large number of different customers so that it is reasonable to model their weights as independent random variables, find the probability that 100 packages will have a total weight exceeding 1700 lb.

Q: normally distributed length, with a mean of 14.9 inches, and standard deviation of 3.1 inches. If…

A: Hi! Thank you for the question, as per the honor code, we are entitled to solve one question at a…

Q: a random variable x with a mean of 8.8 minutes and a standard deviation of 2.9 minutes. Assume that…

A: Given Let x be a random variable representing takeoff time in minutes Let us a assume that x has a…

Q: For a certain type of computers, the length of time between charges of the battery is normally…

A: Answer The mean =50Standard deviation =15

Q: A manufacturer has a large stockpile of model X mobile phones and of model Y mobile phones at its…

A: Given data: The charge-time for model X phones is normally distributed with a mean of 60 minutes and…

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

A: Let X denote the amount of fill per can. Given that X follows N(mean = 16, SD = 1), then Z = (X -…

Q: Suppose that a random variable X can take the values {0, 1, 2 ,3,4,5,8,9} all with equal…

A: Mean =(summation Xi)/n = (0+1+2+3+4+5+8+9)/8 =4 Standard deviation=√E(X2)-mean2

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.7 minutes and…

A: Given data: Mean = 8.7 minutes Standard deviation  = 2.9 minutes

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: GivenMean(μ)=159standard deviation(σ)=32.6

Q: to make 12 saves. What is the probability that the lacrosse goalie will make at least 9 saves? Let…

A: X be the random variable that denotes the number of saves that are made by the lacrosse goalie.  N:…

Q: A manager from a certain well known department store found out the money their customers carry into…

A: From the given information,   Mean = 258 Standard deviation = 35

Q: The engines made by Ford for speedboats had an average power of 220 horsepower (HP) and standard…

A: The formula for z-score is z=x-μσn

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.8 minutes and…

A: Consider X be a random variable which indicates taxi and take off time for commercial jets with a…

Q: What is the probability that a randomly selected krill is longer than 49 mm?

A: Here Given  Body lengths of the speciesare normally distributed with a mean of 40 mm and a standard…

Q: Suppose a pharmaceutical company wants to do a study of the commissions of its sales force. Let's…

A:

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.6 minutes and…

A: Given data: Mean = 8.6 minutes Standard deviation  = 3.5 minutes Sample size = 35

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.6 minutes and…

A: Given Information: The taxi and takeoff time for commercial jets is a random variable x with a mean…

Q: In the Southern Ocean food web, the krill species Euphausia superba is the most important prey…

A: Population mean μ=40  Standard deviation σ =12  We have to find the approximate probabilities that a…

Q: A certain company breaks down their metal and distributes them as pellets to their customers. Their…

A: Let- sample size is given to be 2. To find- Now, by properties of sampling-

Q: In words, define the random variables X and -X . What does each variable represent?  -x= 229,615 Sx…

A: We have to define mentioned terms in words . If we talk about data It consist following terms in…

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.9 minutes and…

A: The following solution is provided below

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 12.4…

A: Given Information: Mean μ=12.4 Standard deviation σ=2.6 If 4 items are chosen at random, to find the…

Q: f a pipe’s diameter exceeds 24 inches, it is useless to a buyer. A buyer receives a shipment of 10…

A:

Q: The owner of a fish market has an assistant who has determined that the weights of catfish are…

A: Given information:

Q: An engineer is going to redesign an ejection seat for an airplane . The seat was designed pilots…

A: (a)   Obtain the probability that his weight is between 120 lb and 161 lb. The probability that…

Q: Suppose that the population mean flight time between cities 1 and 2 is 240 minutes with a population…

A: Given that.   X~N( μ , ?^2 )   μ=240     , ?=20   Z-score =( x - μ )/?

Q: Suppose that, in 1995, the weight of 16-year old males in the United States was normally distributed…

A: Thank you for posting this question ! You have correctly chosen that a z test needs to be performed…

Q: Assume that the mean daily amount of water consumed by females between the ages of 16 and 30 is 26…

A: normal distributionμ = 26σ = 8.5

Q: If the weight assumptions were revised so that the new capacity became 20 passengers and the water…

A: Sure, the correct answer to the prompt in the image is 0.9463.The probability of the mean weight…

Q: The manufacture of a certain part requires two different machine operations. The time on machine 1…

A:

Q: Suppose that an airline has a requirement that male members of the cabin crew are between 62 inches…

A: Approach to solving the question: 1) First find the z-score for both the given inches.2) Find the…

Q: The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.3 minutes and…

A: Given : The taxi and takeoff time for commercial jets is a random variable x with a mean μ = 8.3…

Q: a) What is the probability that for 34 jets on a given runway, total taxi and takeoff time will be…

A:

Q: The owner of a fish market has an assistant who has determined that the weights of catfish are…

A:

Q: Suppose the force acting on a column that helps to support a building is a normally distributed…

A: Given Mean=14, standard deviations=1.25  Note: According to Bartleby guidelines expert solve only…

Q: What is the probability that for 35 jets on a given runway, total taxi and takeoff time will be less…

A: Given : Population Mean,μ = 8.6 Population Standard Deviation,σ = 2.8

Q: Two 5-year girls, Alyse and Jocelyn, have been training to run a 1-mile race. Alyse's 1 mile time A…

A: Given Mean=13.5 Standard deviations=2.5

Q: The manager of a restaurant believes that waiters and waitresses who introduce themselves by telling…

A: Average tip for group 1 :  µ1 = 16%  Average tip for group 2 :  µ2 = 12%  Tip is normally…

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.