Question

Construct a confidence interval for p1−p2 at the given level of confidence. x1=382, n1=514, x2=422, n2=572, 99% confidence The researchers are ___________% confident the difference between the two population proportions, p1−p2, is between_____ and_____.

Answer #1

x1 = 382

n1 = 514

x2 = 422

n2 = 572

We have to construct a 99% confidence interval for the difference between the population proportion.

Formula is

Zc = 2.58

( From z table)

( 0.0054 - 0.0687 , 0.0054 + 0.0687) = > **( - 0.0633 ,
0.0742)**

Construct a confidence interval for p1−p2 at the given level of
confidence.
x1=33, n1=241, x2=38, n2=294, 99% confidence
The researchers are __ % confident the difference between the
two population proportions, p1−p2, is between __ and ___.

Construct a confidence interval for p1 - p2 at the given level
of confidence.
x1 = 364, n1 = 542, x2 = 422, n2 = 574, 90% confidence
The researchers are (BLANK)% confident the difference between
the two population proportions, p1 - p2, is between
(BLANK) and (BLANK).

Construct a confidence interval for p1−p2 at the given level of
confidence.
x1=26, n1=241, x2=30, n2=291, 95% confidence
The researchers are __% confident the difference between the two
population proportions, p1−p2, is between __ and __.

Construct a confidence interval for p1−p2 at the given level of
confidence.
x1=32, n1=272, x2=33, n2=306, 95% confidence.
____________________________________________________________________________
The researchers are __% confident the difference between the
two population proportions, p1−p2, is between __ and __.

Construct a confidence interval for p1−p2 at the given level of
confidence.
x1=378 ,n1=523, x2=402 , n2=583, 90% confidence.
The researchers are ____ % confident the difference between the
two population proportions, p1−p2, is between ____ and ____?

Construct a confidence interval for p1−p2 at the given level of
confidence. x1=35, n1=239, x2=33, n 2=297, 99% confidence The
researchers are ----------% confident the difference between the
two population proportions, p1−p2, is between ---------- and
------------

Construct a confidence interval for p1 - p2 at the given level
of confidence.
x1 = 356, n1 = 543, x2 = 413, n2 = 589, 99% confidence
The researches are ___% confident the difference between the two
population proportions, p1 - p2, is between ____ and ____.

Construct a confidence interval for p1 - p2 at the given level
of confidence.
x1 = 395, n1 = 537, x2 = 432, n2 = 552, 99% confidence.
The researchers are __% confident the difference between the two
population proportions, p1−p2, is between __ and __.
(Use ascending order. Type an integer or decimal rounded to
three decimal places as needed.)

Construct a confidence interval for p1 - p2 at the given level
of confidence.
x1 = 395, n1 = 537, x2 = 432, n2 = 552, 99% confidence.
The researchers are __% confident the difference between the two
population proportions, p1−p2, is between __ and __.
(Use ascending order. Type an integer or decimal rounded to
three decimal places as needed.)

Construct a confidence interval for p1 - p2 at the given level
of confidence.
x1 = 35, n1 = 243, x2 = 36, n2 = 309, 99% confidence
The researchers are (BLANK)% confident the difference between
the two population proportions, p1 - p2, is between (BLANK) and
(BLANK).
(Use ascending order. Type an integer or decimal rounded to
three decimal places as needed)

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