Question

Construct a confidence interval for p 1 minus p 2 at the given level of confidence. x 1 equals 386, n 1 equals 516, x 2 equals 411, n 2 equals 595, 90 % confidence The researchers are nothing % confident the difference between the two population proportions, p 1 minus p 2 , is between nothing and nothing . (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)

Answer #1

Refer Z-table or use excel function "=NORM.S.INV((1-0.05))" to find the Z-value

**The researchers are _{
} confident the difference between the two
populationproportions, _{
} , is between
and
**

Construct a confidence interval for
p 1 minus p 2p1−p2
at the given level of confidence.
x 1 equalsx1=366366,
n 1 equalsn1=521521,
x 2 equalsx2=445445,
n 2 equalsn2=564564,
9090%
confidence
The researchers are
nothing%
confident the difference between the two population
proportions,
p 1 minus p 2p1−p2,
is between
nothing
and
nothing.
(Use ascending order. Type an integer or decimal rounded to
three decimal places as needed.)

Construct a confidence interval for p 1 minus p 2 at the given
level of confidence. x 1 equals366, n 1 equals509, x 2
equals404, n 2 equals554, 90% confidence The researchers are
nothing% confident the difference between the two population
proportions, p 1 minus p 2, is between nothing and nothing.

Construct a confidence interval for
p1−p2
at the given level of confidence.
x 1 =399,
n 1 =533,
x 2 =433,
n 2=569,
90% 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 = 388, n1 = 534, x2 = 404, n2 = 582, 90% 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 = 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 99% confidence interval for p subscript 1 minus p
subscript 2, given x subscript 1 equals 51 comma space n subscript
1 equals 150 comma space x subscript 2 equals 45 comma space and
space n subscript 2 equals 180.

Use the sample data and confidence level to construct the
confidence interval estimate of the population proportion p. n
equals 600 comma x equals 120 comma 90 % confidence nothingless
than p less than nothing (Round to three decimal places as
needed.)

Construct a confidence interval for p 1 minus p 2 at the given
level of confidence. x1 = 387, n1 = 511, x2 = 422, n2 = 553,
99% confidence.

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 ____?

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