A normal population has mean 0.1 and standard deviation of 2.1. Find the probability of mean of simple sample of 900 members will be negative.

Q: Given a normal distribution with a mean of 150 and a standard deviation of 10, what is the…

A: Given,   Mean = 150 Standard deviation = 10

Q: A population has a standard deviation of 25 and a mean of 300. Given a random sample of size 100,…

A:

Q: Assuming that the scores of the student in a test are normally distributed with the mean of 40 and…

A: Given data mean =40 ,standard deviation =6

Q: Given the population of men has normally distributed weights with a mean of 172 lb and a standard…

A:

Q: when samples of size 25 are collected from a normal population that has a mean of 100 and a standard…

A: The sample standard deviation (s) is equal to the ratio of standard deviation of the population σ…

Q: Assume the returns of a stock follow a normal distribution with a mean return of 18% and a standard…

A:

Q: Given a test is normally distributed with a mean of 30 and a standard deviation of 6: What is the…

A: Let's assume X = score in the test.  As given X ~ N ( mean = 30 , standard deviation = 6)  It is…

Q: In a normal distribution with a mean of 72 and a standard deviation of 12 what is the probability…

A: Given,mean(μ)=72standard deviation(σ)=12

Q: For a population with a standard deviation of 40, how large a sample is necessary to have a standard…

A: We want to find the sample size

Q: Assuming that the scores of Grade 11 students in Statistics and Probability in their third quarter…

A:

Q: the random variable X is normally distributed with a mean of 80 and a standard deviation of 10, then…

A: Introduction: Define X as the random variable of interest here. It is given that X has a normal…

Q: In a sample distribution, X=56 corresponds to z=1.00, and X=47 corresponds to z=-0.50. Find the mean…

A: Given,  X=56 corresponds to z=1.00 X=47 corresponds to z=-0.50 wktz=x-μσX=zσ +μ

Q: Given a normal distribution with a mean of 150 and a standard deviation of 10, what is the…

A: Let X be a continuous random variable is normally​ distributed with a mean of 150 and a standard…

Q: If the mean height of a population of university students is 166cm (μ=166) and the standard…

A: Consider,X be the height of students which follows normal distribution with mean of 166 cm and…

Q: 6. If the probability of a defective bolt is 0.1, find (a) the mean (b) the standard deviation for…

A: Given,n=400Probability of success(p)=0.1Probability of failure(q)=1-0.1=0.9here we can use binomial…

Q: For a binomial distribution with n = 15 and p = 0.2, what is the standard deviation of the…

A:

Q: For a normal population with a mean of μ = 80, and a standard deviation of σ = 10, what is the…

A:

Q: 16) A normal population has a mean of 70 and a standard deviation of 5. What is the probability that…

A: The mean and standard deviation are 70 and 5.

Q: A distribution is given as X ~ U(0, 12). What is the theoretical standard deviation?

A: concepts and reasonuniform distribution is a continuous probability distribution.it is defined…

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X…

A: Given dataMean = 35Standard deviation = 7.5

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when the…

A: It is given that p is 0.10.

Q: The mean and standard deviation of the sampling distribution of the mean is shown as?

A:

Q: A population has a mean of 200, a standard deviation of 30, and is normally distributed. A sample of…

A: We want to find the probability  Note: This probability value calculated from standard normal…

Q: Suppose that y is a random variable having a normal distribution with a mean equal to 250 and a…

A: Solution: It is given that the random variable y follows the normal distribution with mean and…

Q: For a normal distribution curve with a mean of 15 and a standard deviation of 5, which range of the…

A:

Q: A population is normally distributed with a mean of 50 and a standard deviation of 10. Find the…

A: Given data,Mean μ=50sd    σ=10P(X<44)=?

Q: For a random sample of 9 women, the average resting pulse rate is x-bar = 76 beats per minute, and…

A:

Q: The heights of 100 high school students are measured, with a mean of 175 cm and a standard deviation…

A:

Q: Suppose you were to take samples of size 100 from a population with a mean of 12 and a standard…

A: The formula of the standard error of the mean is,

Q: Suppose it is known that the mean and the standard deviation for a given population are 65 ar 8,…

A:

Q: Suppose that the variance of a hypothetical population is 49. What is the standard deviation?

A: Solution : Given : σ2 = 49 The variance of the population is denoted by σ2 and standard deviation is…

Q: The standard deviation of the sample mean is less than the standard deviation of the population.…

A:

Q: If you draw a sample of 200 from a normal distribution and using the Empirical Rule; how many data…

A: Given dataSample size(n) = 200In normal distribution, as per empirical formulaApplying empirical…

Q: A normal distribution has a mean of u=54 and a standard deviation of o=6, what is the probability of…

A: Let "X" be the raw score.

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(xs 53)?

A:

Q: If x is normally distributed with a mean of 5 and standard deviation of 2, find the P(x>8).

A:

Q: If a population has a standard deviation σ , then the standard deviation of the mean of 100 randomly…

A:

Q: A population has a standard deviation of 18 on average how much difference should exist for a random…

A: A population has a standard deviation of 18.

Q: distributed, with mean μ=55 and standard deviation σ=4. Find the 6th percentile

A: We have given that, Population mean (μ) = 55 and standard deviation (σ) = 4 Then,  We will find the…

Q: A normal distribution has a mean of 54, and a standard deviation of 6. What is the probability of…

A:

Q: For a populations mean of 22.3 and standard deviation 4, find the probability that the random…

A: The mean is 22.3 and the standard deviation is 4.

Q: . If the probability of a defective bolt is 0.1, find (a) the mean (b) the standard deviation for…

A:

Q: When a normal random variable Y is transformed to a standard normal random variable Z, the mean…

A: When a normal random variable Y is transformed to a standard normal random variable Z, the mean…

Q: The standard deviation of a normal random variable X is $50 . Given that P(X ≤ $40) = .25, what is…

A: Given data,σ=50x=40P(X ≤ $40) = .25μ=?

Q: In a normal distribution with a mean of 72 and a standard deviation of 12, what percentage of cases…

A: GivenMean(μ)=72standard deviation(σ)=12

Q: The annual per capita consumption of ice cream (in pounds) in the United States can be approximated…

A: It is given that the mean is 20.7 and the standard deviation is 4.2.

Q: Given the population of men has normally distributed weights with a mean of 172 lb and a standard…

A: Let X denote the population of men has normally distributed weights with a mean of 172 lb and a…

Q: How would I work this problem out? Thanks

A: It is provided that X follows normal distribution with mean = 300 and standard deviation = 30.Let…

Q: If a random variable that is normally distributed has a mean of 25 and a standard deviation of 3,…

A: Given,mean(μ)=25standard deviation(σ)=3