Question
In: Statistics and Probability
A survey asked, "How many tattoos do you currently have on your body?" Of the 1207...
A survey asked, "How many tattoos do you currently have on your body?" Of the
1207
males surveyed,
197
responded that they had at least one tattoo. Of the
1028
females surveyed,
135
responded that they had at least one tattoo. Construct a
90
%
confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval.
Let
p 1
represent the proportion of males with tattoos and
p 2
represent the proportion of females with tattoos. Find the
90
%
confidence interval for
p 1 minus p 2
.
The lower bound is
nothing
.
The upper bound is
nothing
.
(Round to three decimal places as needed.)
Interpret the interval.
A.
There is
90
%
confidence that the difference of the proportions is in the interval. Conclude that there is
insufficient evidence of a
significant difference in the proportion of males and females that have at least one tattoo.
B.
There is a
90
%
probability that the difference of the proportions is in the interval. Conclude that there is
insufficient evidence of a
significant difference in the proportion of males and females that have at least one tattoo.
C.
There is a
90
%
probability that the difference of the proportions is in the interval. Conclude that there is
a
significant difference in the proportion of males and females that have at least one tattoo.
D.
There is
90
%
confidence that the difference of the proportions is in the interval. Conclude that there is
a
significant difference in the proportion of males and females that have at least one tattoo.
Solutions
orchestra answered 1 year agoRelated Solutions
A survey asked, "How many tattoos do you currently have on your body?" Of the 1247...
A survey asked, "How many tattoos do you currently have on
your body?" Of the
1247
males surveyed,
197
responded that they had at least one tattoo. Of the
1025
females surveyed,
138
responded that they had at least one tattoo. Construct a
99%
confidence interval to judge whether the proportion of males
that have at least one tattoo differs significantly from the
proportion of females that have at least one tattoo. Interpret the
interval.
Let
p1
represent the proportion...
A survey asked, "How many tattoos do you currently have on your body?" Of the 1229...
A survey asked, "How many tattoos do you currently have on
your body?" Of the 1229 males surveyed,185 responded that they
had at least one tattoo. Of the
1030 females surveyed,138 responded that they had at least one
tattoo. Construct a 95% confidence interval to judge whether the
proportion of males that have at least one tattoo differs
significantly from the proportion of females that have at least one
tattoo. Interpret the interval.
Let
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A survey asked, "How many tattoos do you currently have on your body?" Of the 1232...
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The Harris Poll conducted a survey in which they asked, “How
many tattoos do you currently have on your body?” Of the 1205 males
surveyed, 181 responded that they had at least one tattoo. Of the
1097 females surveyed, 143 responded that they had at least one
tattoo. Does the proportion of males that have at least one tattoo
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The Harris Poll conducted a survey in which they asked, “How many tattoos do you currently...
The Harris Poll conducted a survey in which they asked, “How
many tattoos do you currently have?” Of the 1205 males surveyed,
181 responded that they had at least one tattoo. Of the 1097
females surveyed, 143 responded that they had at least one tattoo.
Construct a 95% confidence interval to judge whether the
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