Question

find the MLE’s for the normal distribution.

Answer #1

In a standard normal distribution, find the probability P(z >
1.02).
In a standard normal distribution, find the probability P(z <
-.35).

For a standard normal distribution, find: P(-1.73 < z <
-0.77)
For a standard normal distribution, find: P(z > c) = 0.9494
Find c.
Assume that z-scores are normally distributed with a mean of 0
and a standard deviation of 1.
If P(z>c)=0.2789 P(z>c)=0.2789 , find c
Assume that z-scores are normally distributed with a mean of 0
and a standard deviation of 1. If P(z>d)=0.7887 P(z>d)=0.7887
, find d.
Assume that z-scores are normally distributed with a mean of...

For a normal distribution with µ = 500 and = 100, find the
following values.
What X values form the boundaries for the middle 60% of the
distribution?

A.) For a standard normal distribution, given:
P(z < c) = 0.7373
Find c.
B.) For a standard normal distribution, find:
P(-2.42 < z < 2.75)

1.For a standard normal distribution, find:
P(z < -2.22)
Express the probability as a decimal rounded to 4 decimal
places.
2.For a standard normal distribution, find:
P(z > -1.29)
Express the probability as a decimal rounded to 4 decimal
places.
3. For a standard normal distribution, find:
P(-2.56 < z < -2.43)
4.For a standard normal distribution, find:
P(z < c) = 0.3732
Find c rounded to two decimal places.

Assume a standard Normal distribution. Draw a well-labeled
Normal curve for each part.
a. Find the z-score that gives a left area of 0.7303
b. Find the z-score that gives a left area of 0.1647

Standard normal proportion. Use table B to find the proportion
of a standard normal distribution that is: (a) below -1.42 (b)
above 1.42 (c) below 1.25 (d) between 1.42 and 1.25

The entity X ~ N(0, 1) (Standard normal distribution). (a) Find
q such that Pr(X <= q) = 0.25 (the first quartile of the
standard normal distribution); (b) Find q such that Pr(X <= q) =
0.75 (third quartile of the standard normal distribution)

A: Let z be a random variable with a standard normal
distribution. Find the indicated probability. (Round your answer to
four decimal places.)
P(z ≤ 1.11) =
B: Let z be a random variable with a standard normal
distribution. Find the indicated probability. (Round your answer to
four decimal places.)
P(z ≥ −1.24) =
C: Let z be a random variable with a standard normal
distribution. Find the indicated probability. (Round your answer to
four decimal places.)
P(−1.78 ≤ z...

a.) Given a normal distribution with σ = 0.380. Find the
required sample size for a 95% confidence level (estimating the
mean), given a margin-of-error of 6%.
b.) Given the sample results taken from a normal population
distribution: mean = 4.65, σ = 0.32, and n = 17.
For a 99% confidence interval, find the margin-of-error for the
population mean. (use 2 decimal places)
c.) Given the sample results taken from a normal population
distribution: mean = 1.25, σ =...

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