SOLUTION: Suppose x has a distribution with mean=29 and SD= 28 a) if a random sample of size n= 32 is drawn, find mean of x bar and standard deviation of X bar. And P (29<xbar< 31)

Question 1179018: Suppose x has a distribution with mean=29 and SD= 28
a) if a random sample of size n= 32 is drawn, find mean of x bar and standard deviation of X bar. And P (29
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
Normal distribution: with µ = 29 and σ = 28
a) if a random sample of size n= 32 is drawn:
  x̄ = 29   and s = 28/ √32
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
 P (29 < x̄ < 31) = normalcdf(29,31, 29,28/√32) = .1569

Wish You the Best in your Studies.

RELATED QUESTIONS
suppose x has a distribution with a mean of 29 and standard deviation of 18.Random... (answered by ewatrrr)

A population of values has a normal distribution with μ=17.9 and σ=94.8. You... (answered by Edwin McCravy)

A sample of size 42 will be drawn from a population with mean 52 and standard deviation... (answered by Boreal,ewatrrr)

A population of values has a normal distribution with μ = 22.1 and σ = 81.7. A random... (answered by Theo)

Suppose x has a distribution with μ = 30 and σ = 25. (a) If a random sample of (answered by rothauserc)

Suppose x has a distribution with μ = 25 and σ = 23. (a) If a random sample... (answered by stanbon)

Suppose that X has a distribution with m=72 and s=8 (greek symbols) if random samples... (answered by stanbon)

a random sample of size 35 is drawn from a normal distribution with mean 30 and variance... (answered by rothauserc)

5. Assume that a random variable, x, is distributed according to a normal distribution... (answered by stanbon)