Question
In: Statistics and Probability
Find the following z values for the standard normal variable Z. Use Table 1. (Negative values...
Find the following z values for the standard normal variable Z. Use Table 1. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)
| a. | P(Z ≤ z) = 0.1105 | |
| b. | P(z ≤ Z ≤ 0) = 0.1607 | |
| c. | P(Z > z ) = 0.7698 | |
| d. | P(0.25 ≤ Z ≤ z) = 0.3428 | |
Solutions
orchestra answered 2 years agoRelated Solutions
Find the following z values for the standard normal variable Z. (You may find it useful...
Find the following z values for the standard normal
variable Z. (You may find it
useful to reference the
z table. Negative values should be
indicated by a minus sign. Round your answers to 3 decimal
places.)
a.
P(Z ≤ z) = 0.1002
b.
P(z ≤ Z ≤ 0) = 0.121
c.
P(Z > z ) = 0.8204
d.
P(0.36 ≤ Z ≤ z) =
0.3458
explain
Find the following z values for the standard normal variable Z. (You may find it useful...
Find the following z values for the standard normal
variable Z. (You may find it
useful to reference the
z table. Negative values should be
indicated by a minus sign. Round your answers to 3 decimal
places.)
a.
P(Z ≤ z) = 0.1002
b.
P(z ≤ Z ≤ 0) = 0.121
c.
P(Z > z ) = 0.8204
d.
P(0.36 ≤ Z ≤ z) =
0.3458
explain
For a random variable Z, that follows a standard normal distribution, find the values of z...
For a random variable Z, that follows a standard normal
distribution, find the values of z required for these probability
values:
P(Z<z)=.5 =
P(Z<z)=.1587 =
P(Z<z)=.8413 =
Please show how to solve without using excel.
Please show all steps.
Thank you!
Using the z table (The Standard Normal Distribution Table), find the critical value (or values) for...
Using the z table (The Standard Normal Distribution Table), find
the critical value (or values) for the two-tailed test with
a=0.05
. Round to two decimal places, and enter the answers separated
by a comma if needed.
Use the Standard Normal Table or technology to find the z-score that corresponds to the following...
Use the Standard Normal Table or technology to find the z-score
that corresponds to the following cumulative area, 0.9696
The cumulative area corresponds to the z-score of ____?
1. Z is a standard normal variable. Find the value of Z in the area to...
1. Z is a standard normal variable. Find the value of Z in the
area to the left of Z is 0.9279. The area to the right of Z is
0.1539.
2. Given that x is a Normal random variable with a mean of 10
and standard deviation of 4, find the following probability:
P(8.8<x<12.5)
QUESTION 6. Z is a standard normal variable. Find the value of Z in the following....
QUESTION 6. Z is a standard normal variable. Find the value of Z
in the following. (12 points)
2 Points each
a. The area to the left of Z is 0.8554
b. The area to the right of Z is 0.1112.
c. The area to the left of -Z is 0.0681.
d. The area to the right of -Z is 0.9803.
e. The area between 0 and Z is 0.4678.
f. The area between -Z and Z is 0.754.
Z is a random normal variable. Find the following z values using excel: a. What is...
Z is a random normal variable. Find the following z values using
excel:
a. What is the value of z if the area to the left of z is 0.9515
?
b. What it the value of z if the area to the left of z is 0.1249
?
c. What is the value of z if the area to the right of z is 0.33
?
d. What is the z value such that the area between -z and...
Let Z be a standard normal random variable. Use the calculator provided, or this table, to...
Let Z be a standard normal random variable. Use the calculator
provided, or this table, to determine the value of c.
P(−0.96≤Z≤c)=0.7963
Carry your intermediate computations to at least four decimal
places. Round your answer to two decimal places.
1. If Z is a standard normal random variable, find c such that P(−c ≤ Z...
1. If Z is a standard normal random variable, find
c such that P(−c ≤ Z ≤
c) = 0.82. [Answer to 2 decimal places]
2. Weakly earnings on a certain import venture are approximately
normally distributed with a known mean of $353 and unknown standard
deviation. If the proportion of earnings over $386 is 25%, find the
standard deviation. Answer only up to two digits after decimal.
3. X is a normal random variable with mean μ and
standard...
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