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 1,043 students, 96 report using illegaldrugs. Use a 0.05 significance level to test the principal's claim that illegal drug use in her school is below the currentnational average.Formulate the null and alternative hypotheses. Choose the correct answer below.OA. Ho: p=0.098Ha: p<0.098OC. Ho: p=0.098H₂: p 0.098OB. Ho: p<0.098Ha: p=0.098D. Ho: p=0.098H₂:p>0.098

From the provided information, Sample size (n) = 1043 From which 96 report using illegal drugs.…

Answered: One research study of illegal drug use…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Similar questions

Consider a drug testing company that provides a test for marijuana usage. Among 253 tested subjects, results from 25 subjects were wrong (either a false positive or a false negative). Use a 0.01 significance level to test the claim that less than 10 percent of the test results are wrong.
For a certain year, a study reports that the percentage of college students using credit cards was 87%. A college dean of student services feels that this is too high for her university, so she randomly selects 225 students and finds that 190 of them use credit cards. At the .01 significance level, is she correct about her university?
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 1,045 students, 95 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 answer below OA. H p 0.098 Ha p>0.098 O B. H p<0.098 Ha p 0.098 O C. H p 0 098 Ha p 0098 O D. H p 0.098 Ha p 0.098 Find the test statistic (Round to two decimal places as needed) Find the P-value for the found test statistic (Round to four decimal places as needed.) P-value Now make a conclusion Choose the correct answer below OA Reject H There is insufficient evidence to support the claim that illegal drug use in this principal's school is below the current national average O B. Reject H There is sufficient evidence to support the claim that…
Consider a drug testing company that provides a test for marijuana usage. Among 293 tested subjects, results from 29 subjects were wrong (either a false positive or a false negative). Use a 0.10 significance level to test the claim that less than 10 percent of the test results are wrong
An author argues that more American-born baseball players have birth dates in the months immediately following July 31 because that was the age cutoff date for nonschool baseball leagues. The table below lists months of births for a sample of American-bom baseball players and foreign-bom baseball players. Using a 0.05 significance level, is there sufficient evidence to warrant rejection of the claim that months of births of baseball players are independent of whether they are born in America? Do the data appear to support the author's claim? Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. 345 333 311 314 499 420 Bom in America Foreign Born 385 332 383 101 83 431 400 371 100 103 82 84 82 94 84 59 92 69 Identify the null and alternative hypotheses for this test O A. H: The frequency of births is independent of the month. H: The frequency of births is dependent of the month. OB. H: The frequency of births is dependent of the month. H: The frequency of births is independent…
An author argues that more American-born baseball players have birth dates in the months immediately following July 31 because that was the age cutoff date for nonschool baseball leagues. The table below lists months of births for a sample of American-born baseball players and foreign-born baseball players. Using a 0.05 significance level, is there sufficient evidence to warrant rejection of the claim that months of births of baseball players are independent of whether they are born in America? Do the data appear to support the author's claim? Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. Born in America 387 329 366 346 339 312 310 503 424 437 397 372 Foreign Born 101 81 84 81 93 82 59 90 69 99 104 81 Identify the null and alternative hypotheses for this test. O A. Ho: Months of births of baseball players are independent of where they are born. H1: : Months of births of baseball players are dependent of where they are born. B. Ho: The frequency of births is dependent of…
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