Question
In: Statistics and Probability
A paper reported that in a representative sample of 291 American teens age 16 to 17,...
A paper reported that in a representative sample of 291 American teens age 16 to 17, there were 79 who indicated that they had sent a text message while driving. For purposes of this exercise, assume that this sample is a random sample of 16- to 17-year-old Americans. Do these data provide convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text message while driving? Test the appropriate hypotheses using a significance level of 0.01.
z=
p-value=
Solutions
orchestra answered 1 year agoRelated Solutions
Use the following data to create the contingency tables. AGE Male 16 17 17
Use the following data to create the contingency tables.
AGE
Male
16
17
17
19
19
19
18
17
18
17
16
19
19
19
17
16
17
16
19
19
24
31
23
44
21
42
23
43
43
33
30
41
35
40
24
43
22
30
25 32
43
51
55
80
61
58
65
52
67
75
90
63
71 74
Female
17
16
17
19
19
18
17
19
16
18
19 ...
Use the following data to create the contingency tables. AGE Male 16 17 17
Use the following data to create the contingency tables.
AGE
Male
16
17
17
19
19
19
18
17
18
17
16
19
19
19
17
16
17
16
19
19
24
31
23
44
21
42
23
43
43
33
30
41
35
40
24
43
22
30
25 32
43
51
55
80
61
58
65
52
67
75
90
63
71 74
Female
17
16
17
19
19
18
17
19
16
18
19 ...
Over half of all American teens (ages 12 to 17 years) have an online profile, mainly...
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(a) Give the 99% large-sample confidence interval for the
proportion p of all teens with profiles who include photos
of themselves.
Large-sample Interval: to
(b) Give the plus four 99% confidence interval for p .
(The plus-four interval always pulls the results away from 0% or
100%,...
Over half of all American teens (ages 12 to 17 years) have an online profile, mainly...
Over half of all American teens (ages 12 to 17 years) have an
online profile, mainly on Facebook. A random sample of 471 teens
with profiles found that 301 included photos of themselves. (a)
Give the 90% large-sample confidence interval for the proportion p
of all teens with profiles who include photos of themselves.
Large-sample Interval:
(b) Give the plus four 90% confidence interval for p . (The
plus-four interval always pulls the results away from 0% or 100%,
whichever...
Over half of all American teens (ages 12 to 17 years) have an online profile, mainly...
Over half of all American teens (ages 12 to 17 years) have an
online profile, mainly on Facebook. A random sample of 463 teens
with profiles found that 333 included photos of themselves. (a)
Give the 99.8% large-sample confidence interval for the proportion
p of all teens with profiles who include photos of themselves.
Large-sample Interval: to (b) Give the plus four 99.8% confidence
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In a representative sample of 50 American households, 32
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A. Use Minitab Express to
construct a 95% confidence interval to estimate the proportion of
all American households with a pet. Show how you checked
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to clearly identify your answer. Other than checking assumptions,
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In a representative sample of 50 American households, 32 households had a pet. Use this sample...
In a representative sample of 50 American households, 32
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interval to estimate the proportion of all American households with
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midsize public university preparing for a final exam in an
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