An article about driving practices stated that forty-eight percent of drivers do not obey stop signs...

An article about driving practices stated that forty-eight percent of drivers do not obey stop signs on country
roads. A recent study found that 378 of 840 randomly selected drivers did not obey stop signs on country roads.
Test the statement in the article using both the p-value approach and the critical value approach

Expert Solution

orchestra answered 2 years ago

12% of all drivers do not have a valid driving license, 6% of all drivers have...

12% of all drivers do not have a valid driving license, 6% of all drivers have no insurance, 4% have neither. The probability that a randomly selected driver fails to have insurance, given that he fails to have a valid license is about

Use the following information to solve the next five exercises. Forty-eight percent of all Californians registered...

Use the following information to solve the next five exercises. Forty-eight percent of all Californians registered voters prefer Proposition A. Among Latino California registered voters, 55% prefer Proposition A. Thirty-nine percent of all Californians are Latino. In this problem, let: C = Californians (registered voters) preferring Proposition A. L = Latino Californians. Suppose that one Californian is randomly selected. a. Find P(C). b. Find P(C|L). c. Find P (L AND C). d. Are L and C independent events? Show why...

An article in the Washington Post stated that nearly 45 percent of all Americans take a...

An article in the Washington Post stated that nearly 45 percent of all Americans take a daily medication. A random sample of n = 82 people in Georgia found 31 who take a daily medication. Use this information to test the hypotheses: H0:p=.45H0:p=.45 Ha:p≠.45Ha:p≠.45 where p represents the population proportion of Georgians who take a daily medication. (a) What is the value of the sample proportion of Georgians who take a daily medication? p^=p^= (b) What is the zz test-statistic...

In a certain state, about 70% of drivers who are arrested for driving while intoxicated (DWI)...

In a certain state, about 70% of drivers who are arrested for driving while intoxicated (DWI) are convicted. a. If 12 independently selected drivers were arrested for DWI, how many of them would you expect to be convicted? Choose the correct answer below. A. 6 B. 9 C. 7 D. 8 Your answer is correct. b. What is the probability that exactly 8 out of 12 independently selected drivers are convicted? The probability that exactly 8 out of 12 12...

Researchers observed a random sample of drivers and recorded data about their phone usage while driving....

Researchers observed a random sample of drivers and recorded data about their phone usage while driving. The researchers saw 160 of the 800 women using phones, while 300 of the 1200 men were seen using phones. The researchers want to test at the 0.05 level of significance if these results suggest a significant difference between the proportions of men and women that use their phones while driving. Assume that all requirements have been met. Give the null and alternative hypotheses....

Forty-eight participants were randomly assigned to do math tasks under one of three conditions: 16 while...

Forty-eight participants were randomly assigned to do math tasks under one of three conditions: 16 while listening to soft gentle music, 16 while listening to loud intense music, and 16 while in silence. The means and estimated population variances for the three groups were: Soft-gentle: M = 33, S2 = 25; Loud-intense: M = 42, S2 = 36; Silence M = 42, S2 = 16. Do these results suggest that there is a difference in performance on this kind of...

Forty-three percent of Americans use social media and other websites to voice their opinions about television...

Forty-three percent of Americans use social media and other websites to voice their opinions about television programs (the Huffington Post, November 23, 2011). Below are the results of a survey of 1364 individuals who were asked if they use social media and other websites to voice their opinions about Television programs Uses Social Media and Other Websites to Voice Opinions About Television Programs Doesn’t Use Social Media and Other Websites to Voice Opinions About Television Programs Female 395...

Chapter 13 Questions: What do Milgram’s experiments tell us about the average person’s willingness to obey...

Chapter 13 Questions: What do Milgram’s experiments tell us about the average person’s willingness to obey an authority figure?

what do you think about this article: Give your opinion about the article. "President Trump and...

what do you think about this article: Give your opinion about the article. "President Trump and Senator Elizabeth Warren make odd antitrust bedfellows. Ms. Warren, the Massachusetts Democrat, says megadeals like Aetna’s $77 billion sale to CVS could kill competition. She also backs the Justice Department’s fight against an AT&T-Time Warner merger and has concerns about past merger remedies. That puts her in the same camp as the president. She laid out her views on deal-making in a speech on...

what do you think about this article? Tell us the one fact in this article you...

what do you think about this article? Tell us the one fact in this article you found most surprising and what types of healthcare entities were directly impacted by this fact. Be sure to include HOW the health care entity was impacted by your chosen fact. If you were the manager of the type of organization that you mentioned in Part 1, based on this article should you have prepared your budget as a static budget or a flexible budget?...

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