Question

Consider the following results for independent samples taken from two populations.

sample 1 | sample 2 |

n1=500 | n2=200 |

p1= 0.42 | p2= 0.34 |

a. What is the point estimate of the difference between the two population proportions (to 2 decimals)?

b. Develop a confidence interval for the difference between the two population proportions (to 4 decimals). (______to _______)

c. Develop a confidence interval for the difference between the two population proportions (to 4 decimals). (______to________)

Answer #1

Consider the following results for independent samples taken
from two populations.
Sample 1
Sample 2
n1 = 500
n2= 200
p1= 0.45
p2= 0.34
a. What is the point estimate of the difference
between the two population proportions (to 2 decimals)?
b. Develop a 90% confidence interval for the
difference between the two population proportions (to 4 decimals).
Use z-table.
to
c. Develop a 95% confidence interval for the
difference between the two population proportions (to 4 decimals).
Use z-table....

Consider the following results for independent samples taken
from two populations.
Sample 1
Sample 2
n1 = 500
n2= 200
p1= 0.46
p2= 0.31
b. Develop a 90% confidence interval for the
difference between the two population proportions (to 4 decimals).
Use z-table.
______ to ________
c. Develop a 95% confidence interval for the
difference between the two population proportions (to 4 decimals).
Use z-table.
________ to _________

Consider the following results for independent samples taken
from two populations.
Sample 1
Sample 2
n1 = 400
n2 = 300
p1 = 0.53
p2 = 0.36
A. What is the point estimate of the difference between the two
population proportions? (Use
p1 − p2.
)
B. Develop a 90% confidence interval for the difference between
the two population proportions. (Use
p1 − p2.
Round your answer to four decimal places.)
to
C. Develop a 95% confidence interval for the...

Consider the following results for independent samples taken
from two populations.
sample 1
n=400
p=0.48
sample 2
n=300
p=0.36
Develop a 95% confidence interval for the difference between the
two population proportions.
Select one:
a. (0.13 to 0.29)
b. (0.05 to 0.19)
c. (0.09 to 0.21)
d. (0.06 to 0.18)

Consider the following results for two independent random
samples taken from two populations.
Sample 1
Sample 2
n 1 = 40
n 2 = 30
x 1 = 13.4
x 2 = 11.9
σ 1 = 2.3
σ 2 = 3.2
What is the point estimate of the difference between the two
population means? (to 1 decimal)
Provide a 90% confidence interval for the difference between
the two population means (to 2 decimals). Use
z-table.
( , )
Provide a...

The following results are for independent random samples taken
from two populations.
Sample 1
Sample 2
n1 = 20
n2 = 30
x1 = 22.8
x2 = 20.1
s1 = 2.6
s2 = 4.6
(a)
What is the point estimate of the difference between the two
population means? (Use
x1 − x2.
)
(b)
What is the degrees of freedom for the t distribution?
(Round your answer down to the nearest integer.)
(c)
At 95% confidence, what is the margin...

The following results are for independent random samples taken
from two populations.
Sample 1
Sample 2
n1 = 20
n2 = 30
x1 = 22.5
x2 = 20.1
s1 = 2.2
s2 = 4.6
(a)
What is the point estimate of the difference between the two
population means? (Use
x1 − x2.
)
(b)
What is the degrees of freedom for the t distribution?
(Round your answer down to the nearest integer.)
(c)
At 95% confidence, what is the margin...

The following results are for independent random samples taken
from two populations.
Sample 1
Sample 2
n1 = 20
n2 = 30
x1 = 22.5
x2 = 20.1
s1 = 2.9
s2 = 4.6
a) What is the point estimate of the difference between the two
population means? (Use
x1 − x2.)
b) What is the degrees of freedom for the t
distribution? (Round your answer down to the nearest integer.)
c) At 95% confidence, what is the margin of...

Consider the
hypothesis test below. ho: p1-p2 <=0
ha: p1-p2>0
The following results
are for independent samples taken from the two populations.
Sample 1
Sample 2
n1 200
n2 300
p-bar 0.24
p-bar 0.17
Use pooled estimator of.
a. What is the value of the test statistic (to 2
decimals)?
b. What is the -value (to 4 decimals)?
c. With , what is your hypothesis testing
conclusion?
- Select your answer -Conclude the difference between the
proportions is greater than...

Independent random samples of
n1 = 600
and
n2 = 440
observations were selected from binomial populations 1 and 2,
and
x1 = 334
and
x2 = 378
successes were observed.
(a) Find a 90% confidence interval for the difference
(p1 − p2) in the two
population proportions. (Round your answers to three decimal
places.)
to
(b) What assumptions must you make for the confidence interval to
be valid? (Select all that apply.)
independent samples
random samples
nq̂ > 5...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 20 minutes ago

asked 20 minutes ago

asked 25 minutes ago

asked 38 minutes ago

asked 43 minutes ago

asked 45 minutes ago

asked 45 minutes ago

asked 45 minutes ago

asked 49 minutes ago

asked 54 minutes ago

asked 54 minutes ago

asked 54 minutes ago