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
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