What is the probability of sampling a score of    X = 55 or greater from a population with μ = 50 and σ = 15?

Q: sample of n = 4 scores is selected from a population with μ  = 100 and s = 20. If the sample mean is…

A: Given information: n = 4  μ  = 100  s = 20.  sample mean is M =110

Q: A population had a mean of u= 30 and a standard deviation of o = 8. If the population distribution…

A: We have, A population had a mean of μ = 30 and a standard deviation of σ = 8 we want to find the…

Q: A random sample of n = 9 is obtained from a normal distribution with µ= 40 and σ= 15.  What is the…

A:

Q: For a normal population with µ = 100 and σ = 9, what is the probability of obtaining a sample mean…

A: According to the given information, we have Mean = 100 Standard deviation = 9 Sample size = 25

Q: Suppose you could take all possible samples of size n = 25 from a Normal population with mean μ = 50…

A: Given that a sample of size n = 25 is drawn from a normal population with mean μ = 50 and σ = 5.

Q: Mean = 126 millimeters,variance = 64,if a random sample of 37 bolts is selected,what is the…

A:

Q: If one score is randomly selected from a normal distribution with µ = 22 and σ = 16, what is the…

A: We have:-   according to given question random  variable follows normal distribution as follows…

Q: What is the probability of randomly selecting a sample of n = 36 with a value greater than M = 63…

A: given: M=63 n=36 mean=60 standard deviation = 12

Q: A normal distribution has a mean of µ = 40 with σ = 8. If one score is randomly selected from this…

A: The following information has been provided:

Q: Suppose we have a normal distribution with µ = 10

A: Let X be a random variable which follows a normal distribution with mean μ and standard deviation…

Q: A normal distribution has a mean of µ = 54 and a standard deviation of σ = 6. What is the…

A:

Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: 3. E = total amount of time spent in studying every day S = { }

A: To find the possible values of a random variable. E = total amount of time spent in studying every…

Q: A researcher tries to estimate the population mean by using sufficiently large sample. The…

A: The probability is 0.99.

Q: A normal distribution has a mean of µ = 100 with σ = 20. If one score is randomly selected from this…

A: Given normal distribution with mean = 100Standard deviation = 20The Z score for X is calculated…

Q: A normal distribution of scores has a population mean of 100 with population standard deviation = 5.…

A: P(M>103)= ?

Q: The IQ scores of children in a special education class are normally distributed with μ = 95 and σ =…

A:

Q: A normal distribution has a mean of u = 70 with o =3. What is the probability of sampling an…

A: We have find givan normal distribution...

Q: A random sample of n = 25 scores is obtained from a normal population with µ = 30 and σ = 6. What is…

A: The sample size is 25, population mean is 30 and population standard deviation is 6. The probability…

Q: A sample of n = 100 scores is selected from a population with u = 100 with o = 30. On average, how…

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

Q: A sample of n = 10 scores has a mean of M = 3. What is ΣX for this sample?

A: Solution: From the given information, M=3 and n=10.

Q: Scores on a standardized mathematics test for 8th grade children in New York State form a normal…

A: From the given information 8th grade children in new York state form a normal distribution with mean…

Q: A random sample of n = 16 scores is obtained from a normal population with µ = 40 and σ = 8. What is…

A:

Q: If a sample of n = 4 scores is obtained from a normal population with µ = 70 and σ = 12, what is the…

A: Sample size, n = 4 Mean = 70 Standard deviation = 12 Sample mean = 69 (Raw score)

Q: For the case where the population ratio to population is p = 0.08, what is the probability of…

A: It is an important part of statistics. It is widely used.

Q: A random sample of n = 9 is obtained from a normal distribution with μ= 40 and σ=15. What is the…

A:

Q: A normal distribution has µ = 20 and σ = 4. Which is the probability of randomly selecting a score…

A: Given that.   X~N( μ , ?^2 )   μ=20   , ?=4   Z-score =( x - μ )/?

Q: A population of N = 6 scores has ΣX = 42. What is the population mean?

A: Given ,Population of N=6 scoresand Σx =42

Q: What is the probability of randomly selecting a sample of n = 4 with a value greater than M= 63 from…

A: n = 4 M = 63 u = 60 s = 12

Q: random sample of n= 4 is obtained from a normal distribution µ= 30,         σ= 8.  What is the…

A: A random sample of n=4 is obtained from normal distribution with µ=30 and σ=8. i.e. X~N(µ=30, σ2=82)…

Q: A normal distribution has a mean of µ = 54 and a standard deviation of σ = 6. What is the…

A:

Q: A random sample of n = 9 scores is selected from a normal distribution with μ = 80 and σ = 12. What…

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.