If the weights of students at A&M are normally distributed with a mean of 160 and a standard deviation of 25, what is the probability that a randomly selected student will weigh more than 150?

Q: What is the probability that your score on an exam will be less than 65, if the mean on the exam is…

A: Let X be a continuous random variable of score on the exam is normally​ distributed with a mean of…

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: The IQs of 600 applicants of a certain college are normally distributed with a mean of 115 and a…

A: Answer - The IQ of  n = 600 applicants of a certain college are normally distributed…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 6.5…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.9…

A: As per the Bartleby guideline expert have to answer the first question only. Please submit other…

Q: he weights of toilet paper rolls are normally distributed with a mean of 7 ounces and a standard…

A: mu = 7 s = 0.6

Q: The average weekly income of a U.S. student worker is $200 with a standard deviation of 50. If a…

A: The given values are, sample size = n = 100 standard deviation = σ = 50 mean = μ = 200 P ( -20 <…

Q: the life expectancy for a species of certain insects is normally distributed with mean of 14.3…

A: It is given that the mean is 14.3 and the standard deviation is 4.3.

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.5…

A:

Q: The weight of a 10 year old girl is normally distributed with a mean of 80 pounds with a standard…

A: It is given that the mean is 80 and the standard deviation is 6.

Q: Suppose the weight of hummingbirds are distributed normally with a mean of 25 oz and a standard…

A: Obtain the probability that a randomly selected hummingbird weighs more than 28oz. The probability…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.1 inches,…

A: It is given that the mean is 9.1 and standard deviation is 1.3.

Q: If the weights of sheep are considered normally distributed with a mean of 60 kg and a standard…

A:

Q: If the average commute to work (one way) is 30 minutes, assuming commuting times are normally…

A:

Q: The distribution of weekly salaries at a large company is right skewed with a mean of $1000 and a…

A: Given,sample size (n)=50mean(μ)=$1000standard deviation(σ)=$350

Q: If a male person selected from the population has weight 95 kgs, what is his expected height and…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 7.4 inches,…

A: Let "M" be the mean length of the item in inches.

Q: Suppose the age a student graduates from Salem State is Normally distributed. If the        mean age…

A: Given, mean = 23.1 Standard deviation = 3.1 We know, z = (x-mean)/std dev

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: A manufacturer knows that their items have a normally distributed length, with a mean of 17.7…

A: consider the test statistics z=x-μσn where μ is the mean, σ is the standard deviation, n is the…

Q: Suppose the average credit card debt for Americans is $7000 and is not normally distributed with a…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 12.1…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 18.2…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.7…

A:

Q: A recording firm wants the distribution of lengths of cuts on its playlists to have an average of…

A: Let X be the distribution of lengths of cuts on its playlists. Given mean, μ = 135 sec Standard…

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: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.5…

A:

Q: local fast-food joint reports that they sell a mean of 225.0 burgers per day with a standard…

A: We have given that  Population mean = 225 Standard deviation = 12.3 Sample size = 31

Q: The results on a standardized exam are approximately normally distributed. If the average on the…

A: Given: X~N(μ,σ)μ=70σ=10.5

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 5.5 inches,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 13.1…

A: Given,sample size(n)=6mean(x¯)=13.1standard deviation(σ)=2

Q: at their items have a normally distributed length, with a mean of 16.8 inches, and standard…

A: According to the sum, A manufacturer knows that its items have a normally distributed length, with a…

Q: Scores on a recent national statistics exam were normally distributed with a mean of 80 and a…

A: Let X denote the national statistics exam and it follows normal distribution with a mean of 80 and a…

Q: f a random variable is normally distributed with mean 4.35 and standard deviation 0.59, what is the…

A: Let us consider the random variable is denoted by X which is normally distributed with a mean of…

Q: The Centers for Disease Control report that the total cholesterol levels for women, age 20-29, are…

A: Given, Mean = 183 Standard deviation = 37.2 Sample size = 30   The objective to is find the…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 8.7 inches,…

A: Let x be the length which follows normal distribution with mean 8.7 and standard deviation 2.2. The…

Q: manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.3 years,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10.1…

A: The probability that their mean length is less than 9.5 inches is obtained below: From the given…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6 inches,…

A: GivenMean(μ)=6standard deviation(σ)=0.6sample size(n)=22

Q: The weight of people in a small town in Missouri is known to be normally distributed with a mean of…

A: Mean = 180 Standard deviation = 28 Sample size, n = 40

Q: In a test taken by a large number of students, the average score of the test takers is 90 and the…

A: The mean is 90 and the standard deviation is 4.

Q: The diameter of ping-pong balls manufactured by a French company is 1.57 inches with a standard…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6.1 inches,…

A: Given that, Mean, mu= 6.1 And standard deviation, sigma= 1 We know that z Score= (X-mu)/sigma

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 16.1…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6.7 inches,…

A: Let x¯ denotes the mean length of an manufacturer item which follows normal distribution. The mean…

Q: A population of 2,800 students from a certain region have normally distributed National Examination…

A: Given,sample size(n)=35mean(μ)=89standard deviation(σ)=5

Q: If the distribution of the population has a nonzero standard deviation and mean 12 then the…

A: It is given that the population has a nonzero standard deviation and the mean is 12.

Q: If our population follows a normal distribution with mean 50 and standard deviation 3, then what is…

A: Answer -If our population follows a normal distribution with mean  μ =  50 and standard deviation σ…

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: The average length of a rapier, which is a fencing sword, is 92 cm with a standard deviation of 5.9…

A: Solution-: Given: μ=92cm,σ=5.9cm,n=58 We find, P[average length of a rapier is less than 90 cm]=?

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.