1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iVinArrow [24]
3 years ago
8

insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

them. Use this information to complete parts a through d below.​a) Create a​ 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.​(nothing​%,nothing​%)
Mathematics
1 answer:
ss7ja [257]3 years ago
7 0

Answer: (13.22\%,\ 19.34\%)

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : \hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628

=16.28\%

Significance level : \alpha= 1-0.95=0.05

Critical value : z_{\alpha/2}=1.96

Confidence level for population proportion:-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= (13.22\%,\ 19.34\%)

You might be interested in
Hii! please help asap. i’ll give brainliest
grin007 [14]

only the mean

Step-by-step explanation:

The mean which by where you add all of the data 6+7+9+10+11+13+14/7 Equals 10 which is the middle value, making it the measure of center

6 0
3 years ago
the red line and the blue line trains just arrived at station when will they next arrive at the station at the same time
Whitepunk [10]
They will meet back up in 40 minutes because 8x5=40 and 10x4=40 which 40 is both a multple of 8 and 10 so you're welcome
4 0
3 years ago
Please help with this
mr Goodwill [35]

Answer: x = 1.50551927,2.68790604

Step-by-step explanation:

8 0
3 years ago
HELP ME PLEEEAASSEEE I SUCK AT MATH
irakobra [83]

Answer:

the answer is letter d

5 0
3 years ago
Read 2 more answers
Use money to explain 0.6 and 0.06
ziro4ka [17]
0.6 would be the same as $0.60 AKA 60 cents and 0.06 would be the same as 6 cents
7 0
3 years ago
Read 2 more answers
Other questions:
  • Lakisha has a total of $8000 to invest in two accounts for 1 year. One pays 5% simple interest, and the other pays 6% simple int
    8·2 answers
  • A certain drug is made from only two ingredients: compound A and compound B. There are 6 milliliters of compound A used for ever
    14·1 answer
  • What two square roots are used to estimate square root of 5
    7·1 answer
  • 1.
    13·1 answer
  • How do I do this and what is the answer ?
    12·1 answer
  • 2) through:(-1,-1), slope = -4
    10·1 answer
  • When you roll a dice 2 times what is the probability of rolling a pair of 1’s
    5·1 answer
  • Find an equation for the nth term of the arithmetic sequence.
    9·2 answers
  • If the heights of 99.7% of American men are between 5' 0" and 7' 0", what is your estimate of the standard deviation of the heig
    10·1 answer
  • HURRRYYYY! I ONLY HAVE 3 MINUTES.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!