Question

In a sample of 194 long-term regular methadone (LTM) users, 145 were males. In a sample...

In a sample of 194 long-term regular methadone (LTM) users, 145 were males. In a sample of 189 injecting drug users who were not LTM users, 113 were males. The test statistics value is

A.

3.12
B.

0.047
C.

0.0018
D.

31.2
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
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 36 women athletes at the school showed that 21 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 10% level of significance What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value...
Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A became...
Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A became available for​ wide-area telephone service. Of a random sample of 230 Carrier A​ users, 160 said they were attempting to learn more about their​ options, as did 229 of an independent random sample of 270 users of alternate carriers.​ Test, at the 1% significance level against a​ two-sided alternative, the null hypothesis that the two population proportions are the same. Let Px be the...
Athletes at the University of Colorado have a long-term graduation rate of 67%. Over the past...
Athletes at the University of Colorado have a long-term graduation rate of 67%. Over the past several years, a random sample of 380 athletes showed that 240 eventually graduated. Does this indicate, at a 5% level of significance, that the population proportion of athletes who graduate from UC is now less than 67%? A) Null and Alternative Hypothesis B) Test Statistic C) Critical Value D) Graph critical value and test statistic E) Conclusion Statement F) Describe a Type 2 Error...
A sample obese adult males were randomly divided into two groups in a lifestyle change program....
A sample obese adult males were randomly divided into two groups in a lifestyle change program. In the experimental group, participants were involved in a vigorous 20-minute-per-day exercise program and also given instructions on the importance of diet. The control group only received the diet instructions. The hospital administrators predict that exercise plus diet instruction will reduce LDL cholesterol levels. Below are the LDL cholesterol data after two months in the program. What can be concluded with α = 0.10?...
Suppose a cognitive psychologist conducts a study on the effects of long-term substance use on short-term...
Suppose a cognitive psychologist conducts a study on the effects of long-term substance use on short-term memory. The researcher recruits a total of 30 participants, where 10 participants are identified as marijuana users, 10 participants are alcohol users, and 10 participants identify as using no substances. Participants in each group were given a list of 20 nouns to memorize for 15 minutes. Participants were then given a 15- minute break and then asked to write down/recall as many of the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 40 women athletes at the school showed that 23 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 5% level of significance. (a) What is the level of significance? (b) State the null and alternate hypotheses. (c) What sampling distribution will you...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 40 women athletes at the school showed that 23 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 1% level of significance. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 39 women athletes at the school showed that 22 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 5% level of significance. (a) What is the level of significance? State the null and alternate hypotheses. H0: p = 0.67; H1: p <...
A random sample of potential voters were randomly divided into two groups. Group 1: 500 potential...
A random sample of potential voters were randomly divided into two groups. Group 1: 500 potential voters( no registration reminders sent); 248 registered to vote, Group 2: 600 potential voters(registration reminders sent); 332 registered to vote. Do these data support the claim that the proportion of voters who registered was greater in the group that got reminders. Use a 1% level of significance. a) Find p1,p2,p and q. Round to three decimal places. b) State the null and alternate hypotheses....
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 19 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 1% level of significance. (a) What is the level of significance? State the null and alternate hypotheses. H0: p = 0.67; H1: p ≠...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT