3. Find the boundary that corresponds the the probability for the standard normal distribution. (a) P(z < zo) = 0.8203 (b) P(zo < z) = 0.8997 4. Find the boundary that corresponds the the probability for the normal distribution. (a) P(x< xo) = 0.8203 when µ, = 25 and o, = 6.5 (b) P(y0 < y) = 0.8997 when µy = 25 and oy = 6.5

Suppose X is a randomvariable of normal distribution with mean equal to -2 and standard deviation equal to 4. Find P(X>-2)

Find P(27 < X < 32) if X is normally distributed with mean 24 and standard deviation 5.

Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean ? = 5.6 and standard deviation ? = 0.4. (a) Convert the x interval, 4.5 < x, to a z interval. (Round your answer to two decimal places.) (b) Convert the x interval, x < 4.2, to a z interval. (Round your answer to two decimal places.) (c) Convert the x interval, 4.0 < x < 5.5, to a z interval. (Round your answers to two decimal places.)

A normal distribution has μ = 32 and σ = 5. (a) Find the z score corresponding to x = 27.

Find P(11<X<15) If X is normally distributed with a mean of 14 and a standard deviation of 2?

Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean ? = 5.6 and standard deviation ? = 0.4.   (d) Convert the z interval, z < −1.44, to an x interval. (Round your answer to one decimal place.) (e) Convert the z interval, 1.28 < z, to an x interval. (Round your answer to one decimal place.)

A population of values has a normal distribution with u = 10.3 and o = random sample of size n = 199. 89.3. You intend to draw a What is the mean of the distribution of sample means? Hx = E(X) What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) SD(X)