Question
In: Statistics and Probability
An insurance company checks police records on 564 accidents selected at random and notes that teenagers...
An insurance company checks police records on 564 accidents selected at random and notes that teenagers were at the wheel in 97 of them. Complete parts a) through d).
a) Construct the 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.
95% CI = ( ____ % , _______% )
(Round to one decimal place as needed.)
Solutions
Expert Solution
We have given here,
x=97
n=564
Estimate for sample proportion
Level of significance is =1-0.95=0.05
Z critical value(using Z table)=1.96
| 95% CI = ( 14.1% , 20.3% ) |
orchestra answered 1 year agoRelated Solutions
An insurance company checks police records on 599 accidents selected at random and notes that teenagers...
An insurance company checks police records on 599 accidents
selected at random and notes that teenagers were at the wheel in 94
of them. Complete parts a) through d). a) Construct the 95%
confidence interval for the percentage of all auto accidents that
involve teenage drivers.
An insurance company checks police records on 556 accidents selected at random and notes that teenagers...
An insurance company checks police records on 556 accidents
selected at random and notes that teenagers were at the wheel in 91
of them. Complete parts
a) Construct the 95% confidence interval for the percentage of
all auto accidents that involve teenage drivers.
An insurance company checks police records on 571 accidents selected at random and notes that teenagers...
An insurance company checks police records on 571 accidents
selected at random and notes that teenagers were at the wheel in 91
of them. Complete parts a) through d).
a) Construct the 95% confidence interval for the percentage of
all auto accidents that involve teenage drivers.
95% Cl= (____%, ____%)
(Round to one decimal place as needed.)
An insurance company checks police records on 556 accidents selected at random and notes that teenagers...
An insurance company checks police records on 556 accidents
selected at random and notes that teenagers were at the wheel in 82
of them. Complete parts a) through d)
a) Construct the 95% confidence interval for the percentage of
all auto accidents that involve teenage drivers. (Round to one
decimal place as needed.)
b) Explain what your interval means.
c) Explain what "95% confidence" means.
d) A politician urging tighter restrictions on drivers'
licenses issued to teens says, "In one...
An insurance company checks police records on 557 accidents selected at random and notes that teenagers...
An insurance company checks police records on 557 accidents
selected at random and notes that teenagers were at the wheel in 88
of them.
a) Construct the 95% confidence interval for the percentage of
all auto accidents that involve teenage drivers. 95% CI = %, %
(Round to one decimal place as needed.) b) Explain what your
interval means. A. We are 95% confident that the true percentage of
accidents involving teenagers falls inside the confidence interval
limits. B. We...
An insurance company checks police records on 591 accidents selected at random and notes that teenagers...
An insurance company checks police records on 591 accidents
selected at random and notes that teenagers were at the wheel in 85
of them. Complete parts a) through d).
A) creat a 95% confidence interval for the percentage of all
auto accidents that involve teenage drivers.
B) explain what your intervals mean
C) explain what 95% condifence means.
D) a politican urging tighter restrictions on drivers licenses
issued to teens says, "In one of every five auto accidents, a
teenager...
An insurance company checks police records on 559 accidents selected at random and notes that teenagers...
An insurance company checks police records on 559 accidents
selected at random and notes that teenagers were at the wheel in 82
of them. Complete parts a) through d).
a) Construct the 95% confidence interval for the
percentage of all auto accidents that involve teenage
drivers.
95% CI = ( ___________ %, _________ % )
(Round to one decimal place as needed.)
b) Explain what your interval means.
We are 95% confident that a randomly sampled accident would
involve a...
An insurance company checks police records on 568 accidents selected at random and notes that teenagers...
An insurance company checks police records on 568 accidents
selected at random and notes that teenagers were at the wheel in 92
of them. Complete parts a) through d).
a) Construct the 95% confidence interval for the
percentage of all auto accidents that involve teenage
drivers.
95% CI = ( ___________ %, _________ % )
(Round to one decimal place as needed.)
b) Explain what your interval means.
We are 95% confident that the true percentage of accidents
involving teenagers...
An insurance company checks police records on 559 accidents selected at random and notes that teenagers...
An insurance company checks police records on 559 accidents
selected at random and notes that teenagers were at the wheel in 92
of them. Construct the 95% confidence interval for the percentage
of all auto accidents that involve teenage drivers.
Question: 95% CI= (___%,___%) (round to one
decimal place as needed.)
An insurance company checks police records on 1000 accidents selected at random and finds that teenagers...
An insurance company checks police records on 1000
accidents selected at random and finds that teenagers were at the
wheel for 225 of them.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A sample human input file that contains test values that a human would enter on the...
- A solution is prepared by dissolving 15 ml of methanol in 150.0 ml water at 25...
- Consider a newlywed who is planning a wedding anniversary gift of a trip to Canada for...
- We are evaluating a project that costs $868,000, has a life of eight years, and has...
- a.) Given sample data: 61.2, 61.9, 62.8, 63.1, 64.0, 64.3, 64.9, 65.5, 66.3 and 67.9, test...
- A research paper describes an experiment in which 74 men were assigned at random to one...
- 1. Which components would a retail organization consider while surveying/assessing the suitability of its products for...
ADVERTISEMENT