Question
In: Statistics and Probability
A national study report indicated that 19.9% of Americans were identified as having medical bill financial...
A national study report indicated that 19.9% of Americans were identified as having medical bill financial issues. What if a news organization randomly sampled 400 Americans from 10 cities and found that 90 reported having such difficulty. A test was done to investigate whether the problem is MORE SEVERE among these cities. What is the value of the TEST STATISTIC (T.S.)?
a. 0.787
b. 2.479
c. 0.016
d. 1.302
Solutions
Expert Solution
Let p denotes the true proportion of Americans were identified as having medical bill financial issues in selected 10 cities.
Here,
The value of the TEST STATISTIC = 1.302
ans-> d)
orchestra answered 2 years agoRelated Solutions
A national study report indicated that 19.9% of Americans were identified as having medical bill financial...
A national study report indicated that 19.9% of Americans were
identified as having medical bill financial issues. What if a news
organization randomly sampled 400 Americans from 10 cities and
found that 90 reported having such difficulty. A test was done to
investigate whether the problem is MORE SEVERE among these cities.
What is the value of the TEST STATISTIC (T.S.)?
a. 0.787
b. 2.479
c. 0.016
d. 1.302
A national study report indicated that 19.9% of Americans were identified as having medical bill financial...
A national study report indicated that 19.9% of Americans were
identified as having medical bill financial issues. What if a news
organization randomly sampled 400 Americans from 10 cities and
found that 90 reported having such difficulty. A test was done to
investigate whether the problem is MORE SEVERE among these cities.
What is the p-value for this test?
A) 0.096
B) 0.054
C) 0.216
D) 0.108
A national study report indicated that 20.9% of Americans were identified as having medical bill financial...
A national study report indicated that 20.9% of Americans were
identified as having medical bill financial issues. What if a news
organization randomly sampled 400 Americans from 10 cities and
found that 95 reported having such difficulty. A test was done to
investigate whether the problem is more severe among these cities.
What is the p-value for this test? (Round to four decimal
places.)
In 1998 a national vital statistics report indicated that about 2.3 % of all births produced...
In 1998 a national vital statistics report indicated that about
2.3 % of all births produced twins. Is the rate of twin births the
same among very young mothers? Data from a large city hospital
found only 9 sets of twins were born to 481 teenage girls. Test an
appropriate hypothesis and state your conclusion. Be sure the
appropriate assumptions and conditions are satisfied before you
proceed.
Are the assumptions and the conditions to perform a
one-proportion z-test met?
No...
In 1990 a national vital statistics report indicated that about 2.1% of all births produced twins....
In 1990 a national vital statistics report indicated that about
2.1% of all births produced twins. Is the rate of twin births the
same among very young mothers? Data from a large city hospital
found only 7 sets of twins were born to 531 teenage girls. Test an
appropriate hypothesis and state your conclusion. Be sure the
appropriate assumptions and conditions are satisfied before you
proceed.
Determine the z-test statistic. Select the correct choice
below and, if necessary, fill in...
In 2000 a national vital statistics report indicated that about 2.5% of all births produced twins....
In
2000 a national vital statistics report indicated that about 2.5%
of all births produced twins. Is the rate of twin births same among
very young mothers. Data from a large city hospital found only 10
sets of twins were born to 497 teenage girls. Determine the z
statistic and find the p value.
In a study of Americans from a variety of professions were asked if they considered themselves...
In a study of Americans from a variety of professions were asked
if they considered themselves left-handed, right-handed, or
ambidextrous. The results are given below:
Profession
right
left
ambidextrous
total
Teacher
101
10
7
118
Engineer
115
26
7
148
Surgeon
121
5
6
132
Firefighter
83
16
6
105
Police Officer
116
10
6
132
Total
536
67
32
635
Is there enough evidence to conclude that proportion of
left-handed surgeons is less than the proportion of left-handed
Engineers?...
In a study of Americans from a variety of professions were asked if they considered themselves...
In a study of Americans from a variety of professions were asked
if they considered themselves left-handed, right-handed, or
ambidextrous.
The results are given below:
Profession Right Left Ambidextrous Total
Psychiatrist 101 10 7 118
Architect 115 26 7 148
Orthopedic Surgeon 121 5 6 132
Lawyer 83 16 6 105
Dentist 116 10 6 132
Total 536 67 32 635
1. Test for an association between handedness and career for
these five professions. What do you conclude...
From public records, individuals were identified as having been charged with drunken driving not less than...
From public records, individuals were identified as having been
charged with drunken driving not less than 6 months or more than 12
months from the starting date of the study. Two random samples from
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respondents were asked in a face-to-face interview if they had been
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people interviewed face to face, 17 answered the question
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From public records, individuals were identified as having been charged with drunken driving not less than...
From public records, individuals were identified as having been
charged with drunken driving not less than 6 months or more than 12
months from the starting date of the study. Two random samples from
this group were studied. In the first sample of 35 individuals, the
respondents were asked in a face-to-face interview if they had been
charged with drunken driving in the last 12 months. Of these 35
people interviewed face to face, 15 answered the question
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