Question

Is the national crime rate really going down? Some sociologists say yes! They say that the...

Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 years.† Suppose you are a sociologist in Rock Springs, Wyoming, and a random sample of police files showed that of 31 arrests last month, 25 were of males aged 15 to 34 years. Use a 1% level of significance to test the claim that the population proportion of such arrests is the city different from 70%. Solve the problem using both the traditional method and the P-value method. Since the sampling distribution of is the normal distribution, you can use critical values from the standard normal distribution as shown in the table of critical values of the z distribution. (Round the test statistic and the critical value to two decimal places. Round the P-value to four decimal places.)

test statistic =
critical value = ±
P-value =
0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
Is the national crime rate really going down? Some sociologists say yes! They say that the...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 1.) Is the national crime rate really going down? Some sociologists say yes! They say that...

    1.) Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 years.† Suppose you are a sociologist in Rock Springs, Wyoming, and a random sample of police files...

  • Is the national crime rate really going down? Some sociologists say yes! They say that the...

    Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 years†. Suppose you are a sociologist in Rock Springs, Wyoming, and a random sample of police files showed...

  • Is the national crime rate really going down? Some sociologists say yes! They say that the...

    Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 yearst. Suppose you are a sociologist in Rock Springs, Wyoming, and a random sample of police files showed...

  • Is tha national crime rata really going down? Some sociolagists say ye! Thay say that the...

    Is tha national crime rata really going down? Some sociolagists say ye! Thay say that the reason for tha decline in crime rates in tha 108ds and 1990s is demographics. It seams that tha population is aging, and alder people commit fawer crimes. According to the FB and the Justice Depar ment, 70% of all arrests are of males aged 15 to 34 years. Suppose you dre a su colo ist in Rock Springs wyoming and a random sample of...

  • Need Help from an expert. with correct answers. Thank you. All is only one question #12....

    Need Help from an expert. with correct answers. Thank you. All is only one question #12. 12. - POINTS BBUNDERSTAT128.3.009. MY NOTES ASK YOUR TEACHER Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests...

  • Stihl Math 207, action 03, 2000W Assignment Submission & scoring 0 Instructions Assignment Submission You will...

    Stihl Math 207, action 03, 2000W Assignment Submission & scoring 0 Instructions Assignment Submission You will have 2 chances for each question For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your last submission is used for your score. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER DETAILS 1. (-/10.71 Points) BBUNDERSTAT12 8.3.009.5. Is the national crime rate really going down?...

  • A random sample of 51 adult coyotes in a region of northern Minnesota showed the average...

    A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.03 years, with sample standard deviation s = 0.82 years. However, it is thought that the overall population mean age of coyotes is μ = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use α = 0.01. (a) What is the value of...

  • The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally...

    The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally injured automobile drivers were intoxicated. A random sample of 31 records of automobile driver fatalities in Kit Carson County, Colorado, showed that 18 involved an intoxicated driver. Do these data indicate that the population proportion of driver fatalities related to alcohol is less than 77% in Kit Carson County? Use α = 0.01. Solve the problem using both the traditional method and the P-value...

  • A random sample of 1- 10 regions in New England gave the following vielent crime rates...

    A random sample of 1- 10 regions in New England gave the following vielent crime rates (per milion population). New England Crime Rate .5 3.7 4.0 4.1 33 41 18 48 2.9 3. Another random sample of n2 - 12 regions in the Rocky Mountain states gave the folowing violent crme fates (per milion population) x2 Rocky Mountain Crime Rate 3.5 4.1 47 5.3 33 48 3.5 2.4 3.1 3.5 5.2 28 Mountai, mpl, İS igher than an New bylaed,...

  • The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally...

    The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally injured automobile drivers were intoxicated. A random sample of 28 records of automobile driver fatalities in Kit Carson County, Colorado, showed that 14 involved an intoxicated driver. Do these data indicate that the population proportion of driver fatalities related to alcohol is less than 77% in Kit Carson County? Use α = 0.01. Solve the problem using both the traditional method and the P-value...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT