Question

One research study of illegal drug use among 12-17 year olds reported a decrease in use...

One research study of illegal drug use among 12-17 year olds reported a decrease in use (from 11.4% in 1997) to 9.7% now. Suppose a survey in a large high school reveals that, in a random sample of 1052 students, 99 report using illegal drugs. Use a 0.05 significance level to test the principal’s claim that illegal drug use in her school is below the current national average.

1) Z score:

2) P value

3) Is there significant evidence to support the claim that illegal drug use is below national average?
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
One research study of illegal drug use among​ 12- to​ 17-year-olds reported a decrease in use​...
One research study of illegal drug use among​ 12- to​ 17-year-olds reported a decrease in use​ (from 11.4% in​ 1997) to 9.8 ​% now. Suppose a survey in a large high school reveals​ that, in a random sample of 1 comma 058 ​students, 96 report using illegal drugs. Use a 0.05 significance level to test the​ principal's claim that illegal drug use in her school is below the current national average. Formulate the null and alternative hypotheses. Choose the correct...
2.Drug use. A Department of Health and Human Services study of illegal drug use among 12-...
2.Drug use. A Department of Health and Human Services study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from 11.4% in 1997 to 9.9% now). Suppose a survey in a large high school reveals that, in a random sample of 1,050 students, 98 report using illegal drugs. Test the principal’s claim that illegal drug use in her school is below the current national average. Use a 0.05 significance level and conduct a full hypothesis test...
A recent drug survey showed an increase in the use of drugs and alcohol among local...
A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national rate of 62%. In a random survey of 340 seniors, 215 reported using (or trying) drugs or alcohol within the past 6 months. Test the claim at the 10% significance level.
A recent drug survey showed an increase in the use of drugs and alcohol among local...
A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 69 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them. Conduct a hypothesis test at the 5%...
A recent drug survey showed an increase in the use of drugs and alcohol among local...
A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 69 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them. Conduct a hypothesis test at the 5%...
The population IQ score was collected from a national-wide test. The mean population IQ score is...
The population IQ score was collected from a national-wide test. The mean population IQ score is 101 and with a stand deviation of 15. The data of original population follows the normal distribution. Use the Z-score table provided to answer the following questions: (1) What is the Z score for IQ score = 95? Answer:  (Please report your answer to 3 decimal places.) (2) What is the Z score for IQ score = 110? Answer:  (Please report your answer to 3 decimal...
Which one of the following psychologists is most likely to agree with the idea that there...
Which one of the following psychologists is most likely to agree with the idea that there are "multiple intelligences" that are independent and distinct? A) Charles Spearman B) Claude Steele C) Howard Gardner D) Sue Savage-Rumbaugh Kyle is studying how language abilities change throughout childhood, and Kelly is studying cognitive changes in late adulthood. Both Kyle and Kelly are conducting studies in which area of psychology? A) clinical psychology B) humanistic psychology C) epigenetics D) developmental psychology REM sleep is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT