Question
In: Advanced Math
On 5/17/2020, a random sample of 1007 U.S. households finds that Trump has a 49% approval...
On 5/17/2020, a random sample of 1007 U.S. households finds that Trump has a 49% approval rating.
a) Use the 2SD method to find a 95% confidence interval estimate of the proportion of all U.S. households that approve of Trump on 5/17/2020. Show all work/steps to get the 2SD estimate. Round the margin of error to three decimal places. Work and Answer:
b) Use your answer from part (a) to fill in the red spaces below in order to write the results of the poll in these two notations:
According to the poll, on 5/17/2020, Trump has an approval rating of 49% ± _________%
According to the poll, on 5/17/2020, Trump’s approval rating was between ______% and ______%
c) If we were to use this same sample information to find a 90% confidence interval estimate instead of a 95% confidence interval estimate, then would our new 90% confidence interval be wider, or would it be narrower than the 95% estimate? Work and Answer:
Solutions
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Colby Messinger answered 1 year agoRelated Solutions
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
105
Married, no children
29%
120
Single parent
9%
29
One person
25%
88
Other (e.g., roommates, siblings)
11%
69
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
105
Married, no children
29%
120
Single parent
9%
29
One person
25%
88
Other (e.g., roommates, siblings)
11%
69
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
101
Married, no children
29%
110
Single parent
9%
35
One person
25%
93
Other (e.g., roommates, siblings)
11%
72
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of
Household
Percent of
U.S.
Households
Observed
Number
of Households in
the Community
Married with children
26%
91
Married, no children
29%
118
Single parent
9%
37
One person
25%
95
Other (e.g., roommates, siblings)
11%
70
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
98
Married, no children
29%
120
Single parent
9%
30
One person
25%
91
Other (e.g., roommates, siblings)
11%
72
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of
Household
Percent of
U.S.
Households
Observed
Number
of Households in
the Community
Married with children
26%
99
Married, no children
29%
117
Single parent
9%
28
One person
25%
101
Other (e.g., roommates, siblings)
11%
66
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
98
Married, no children
29%
126
Single parent
9%
32
One person
25%
88
Other (e.g., roommates, siblings)
11%
67
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below. Type of Household Percent of U.S. Households Observed Number
of Households in the Community Married with children 26% 103
Married, no children 29% 105 Single parent 9% 37 One person 25% 100
Other (e.g., roommates, siblings) 11% 66 Use a 5% level of
significance to test the claim that the distribution of U.S.
households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
106
Married, no children
29%
101
Single parent
9%
31
One person
25%
102
Other (e.g., roommates, siblings)
11%
71
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
The type of household for the U.S. population and for a random sample of 411 households...
The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
101
Married, no children
29%
118
Single parent
9%
28
One person
25%
97
Other (e.g., roommates, siblings)
11%
67
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...
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