Question
In: Statistics and Probability
Suppose a simple random sample of size n=81is obtained from a population that is skewed right...
Suppose a simple random sample of size n=81is obtained from a population that is skewed right with mu equals 77and sigma equals 9
.
(a) Describe the sampling distribution of x
b) What is Upper P left parenthesis x overbar greater than 78.15 right parenthesis?
(c) What is Upper P left parenthesis x overbar less than or equals 74.6 right parenthesis?
(d) What is Upper P left parenthesis 75.85 less than x overbar less than 79.05 right parenthesis?
.
Solutions
orchestra answered 2 years agoRelated Solutions
A simple random sample of size n=36 is obtained from a population that is skewed right...
A simple random sample of size n=36 is obtained from a
population that is skewed right with μ=74 and σ=24.
(a) Describe the sampling distribution of overbarx.
(b) What is P ( x overbar > 80.6 )?
(c) What is P (x overbar ≤64.6)?
(d) What is P ( 70<x<80?)
(a) Choose the correct description of the shape of the sampling
distribution of overbarx.
A.The distribution is skewed left.
B.The distribution is uniform.
C.The distribution is approximately normal.
D.The distribution...
A simple random sample of size n=69 is obtained from a population that is skewed left...
A simple random sample of size n=69 is obtained from a
population that is skewed left with u=48 and o=6. Does the
population need to be normally distributed for the sampling
distribution of x to be approximately normally distributed? Why?
What is the sampling distribution of x?
Suppose a simple random sample of size n=75 is obtained from a population whose size is...
Suppose a simple random sample of size n=75 is obtained from a
population whose size is N= 30,000 and whose population proportion
with a specified characteristic is p= 0.4 .
A) Determine the standard deviation of the sampling distribution
of p hat (Round to 6 decimals)
B) What is the probability of obtaining x=33 or more individuals
with the characteristic? That is, what is P(p ≥0.44)? (Round to
4 decimals)
Suppose a simple random sample of size n=1000 is obtained from a population whose size is...
Suppose a simple random sample of size n=1000 is obtained from a
population whose size is N=2,000,000 and whose population
proportion with a specified characteristic is p = 0.22
a. What is the probability of obtaining x=250 or more
individuals with the characteristic?
Suppose a simple random sample of size n=75 is obtained from a population whose size is...
Suppose a simple random sample of size n=75 is obtained from a
population whose size is N=15,000 and whose population proportion
with a specified characteristic is p=0.8.
a) Determine the mean of the sampling distribution of p with
caret.
Determine the standard deviation of the sampling distribution of
p with caret.
b) What is the probability of obtaining x=66 or more individuals
with the characteristic? That is, what is P(p with caret greater
than or equals 0.88)?
What is the...
Suppose a simple random sample of size n= 1000 is obtained from a population whose size...
Suppose a simple random sample of size n= 1000 is obtained from
a population whose size is N=2,000,000 and whose population
proportion with a specified characteristic is p= 0.65.
(a) Describe the sampling distribution of
(b) What is the probability of obtaining x= 690 or more
individuals with the characteristic?
(c) What is the probability of obtaining x = 620 or fewer
individuals with the characteristic?
Suppose a simple random sample of size n=200 is obtained from a population whose size is...
Suppose a simple random sample of size n=200 is obtained from a
population whose size is Upper N= 20,000 and whose population
proportion with a specified characteristic is
p equals 0.6 .p=0.6. Complete parts (a) through (c) below.
(a) Determine the standard deviation
(b) What is the probability of obtaining x=124 or more
individuals with the characteristic? That is, what is
P(p≥0.62)?
(c) What is the probability of obtaining x=106 or fewer
individuals with the characteristic? That is, what is...
Suppose a simple random sample of size n equals=1000 is obtained from a population whose size...
Suppose a simple random sample of size n equals=1000 is obtained
from a population whose size is N equals=1,000,000 and whose
population proportion with a specified characteristic is
p=0.74.
(b) What is the probability of obtaining x=770 or more
individuals with the characteristic?
(c) What is the probability of obtaining x=720 or fewer
individuals with the characteristic?
(Round to four decimal places as needed.)
How to solve these problems in Statcrunch? Thank you!
Suppose a simple random sample of size n=41 is obtained from a population with mu=61 and...
Suppose a simple random sample of size n=41 is obtained from a
population with mu=61 and sigma=19.
(b) Assuming the normal model can be used, determine
P(x overbarx < 71.4).
(c) Assuming the normal model can be used, determine
P(x overbarx ≥ 69.1).
Suppose a simple random sample of size n=64 is obtained from a population with μ=76 and...
Suppose a simple random sample of size n=64 is obtained from a
population with μ=76 and σ=8.
(a) Describe the sampling distribution of x̅
(b) What is P (x̅ > 77.7)?
(c) What is P (x̅ ≤ 73.65)?
(d) What is P (74.5 < x̅ < 78.15)?
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