Question

Using the unit normal table, find the proportion under the standard normal curve that lies between the following values. (Round your answers to four decimal places.) (a) the mean and z = 0 0.3989 Incorrect: Your answer is incorrect. (b) the mean and z = 1.96 0.0250 Incorrect: Your answer is incorrect. (c) z = −1.30 and z = 1.30 (d) z = −0.80 and z = −0.20

Answer #1

a) For standard normal variable mean is zero and variance is 0,

So the proportion is 0

b) As the mean is equal to zero and from normal table we have

and

Hence the required proportion is

c) We know from normal table that

Hence the proportion is

d) Normal table gives

and

Hence

Using the unit normal table, find the proportion under the
standard normal curve that lies between the following values.
(Round your answers to four decimal places.)
(a) the mean and z = 0 (b) the mean and z = 1.96 (c) z = −1.80
and z = 1.80 (d) z = −0.80 and z = −0.20 (e) z = 1.00 and z =
2.00

Using the unit normal table, find the proportion under the
standard normal curve that lies between the following values.
(Round your answers to four decimal places.)
https://www.webassign.net/priviterastats3/priviterastats3_appendix_c.pdf
<-- unit normal table
(a) the mean and
z = 0
(b) the mean and
z = 1.96
(c)
z = −1.80 and z = 1.80
(d)
z = −0.40 and z = −0.10
(e)
z = 1.00 and z = 2.00

Find the area under the standard normal curve that lies between
the following two z values. Round your answers to at least four
decimal places.
(a)Find the area under the standard normal curve that lies
between = z − 1.28 and = z 1.36 .
(b)Find the area under the standard normal curve that lies
between = z − 2.17 and = z − 1.92 .
(c)Find the area under the standard normal curve that lies
between = z 1.36...

9. Using our text’s z-table, find the proportion under the curve
that lies between each of the following: a. The mean & z = 1.96
b. The mean & z = -0.83 c. z = -1.5 & z = 1.5 d. z = -0.3
& z = -0.1 e. z = -1.65 & z = 1.45

Determine the area under the standard normal curve that lies
between left parenthesis a right parenthesis Upper Z equals
negative 1.86 and Upper Z equals 1.86 , (b) Upper Z equals
negative 1.37 and Upper Z equals 0 , and (c) Upper Z equals
negative 1.75 and Upper Z equals 1.73 . LOADING... Click the icon
to view a table of areas under the normal curve. (a) The area that
lies between Upper Z equals negative 1.86 and Upper Z...

A-
Sketch the area under the standard normal curve over the indicated
interval and find the specified area. (Round your answer to four
decimal places. The area to the left of z = - 1.41 is
B- Sketch the area under the standard normal curve over the
indicated interval and find the specified area. (Round your answer
to four decimal places. The area to the right of z = 0.21 is
C- Sketch the area under the standard normal curve...

(a)Find the area under the standard normal curve that lies
outside the interval between =z−1.73 and =z1.99.
(b)Find the area under the standard normal curve that lies
outside the interval between =z−1.75 and =z0.99.
(c)Find the area under the standard normal curve that lies
outside the interval between =z0.89 and =z1.41.
(d)Find the area under the standard normal curve that lies
outside the interval between =z−1.80 and =z−1.33.

1- Find the area under the standard normal curve between z=0.76
and z=1.90.
Round your answer to four decimal places.
2- Find the area under the standard normal curve between z=-2.49
and z=-0.44.
Round your answer to four decimal places.
3- Find the area under the standard normal curve between z=-2.26
and z=1.88.
Round your answer to four decimal places.
4- Find the area under the standard normal curve to the right of
z=2.37.
Round your answer to four decimal...

Find z such that 7.8% of the standard normal curve lies to the
left of z. z = ______. Find z such that 7.4% of the standard normal
curve lies to the right of z. z = ______. Find the z value such
that 81% of the standard normal curve lies between −z and z. (Round
your answer to two decimal places.) z = ______.

Q: Calculate the area under the standard normal curve to the
left of these values. (Round your answers to four decimal
places.)
(a)
z = 1.3
(b)
z = 1.81
(c)
z = 0.80
(d)
z = 4.11
Q: Consider a standard normal random variable with μ =
0 and standard deviation σ = 1. (Round your answers to
four decimal places.)
(a)
P(z < 2) =
(b)
P(z > 1.15) =
(c)
P(−2.35 < z < 2.35)
=
(d) ...

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