statistic question
Question 1, 9.1.19 blemSet HW Score: 0%, O of 12 points 0 Points: O of 1 Part 1 of 3 Save • I~ State the null and alternative hypotheses for a hypothesis test; indicate whether the hypothesis test will be left-tailed , right-tailed, or two-ta1fed; and clearly state the two possible conclusions that address the given claim. A human resources manager claims that less than 3% new hires fail their background checks. ——————-~’–=..·.:..:··:..!_•_J———————- Which of the following is the hypothesis test to be conducted? . 0 A. H0 : p = 0.03 0 B. H0 : p < 0.03 H8 : p < 0.03 Ha: p 0 C. H0 : p ¢ 0.03 =0.03 0 D. H0 : p = 0.03 I Ha: p = 0.03 Ha: p > 0.03 0 E. H0 : p = 0.03 QF. t”io: p > 0.03 Ha: p = 0.03 H8 : p¢0.03 , ‘ • ·W an example Get more help … ( Clear all) ·/Player.aspx?cultureld=&theme=math&style=highered&disableStandbylndicator=true&assignmentHandleslocale=true&enablele… Question 2, 9.1.21 mSet HW Score: 0%, O of 12 points 0 Points: O of 1 Part 1 of 3 Save .. • State the null and alternative hypotheses for a hypothesis test; indicate whether the hypothesis test will be left-tailed, right-tailed, or two-tailed; and clear1y state the two possible conclusions that address the given claim. An advertisement claims their product prevents male pattern baldness and that the proportion of customers who have hair is greater than 0.92. ——————~c::::::_::::…,:>——————–~Which of the following is the hypothesis test to be conducted? -~ 0 A. H0·: p = 0.92 0 8: H0 : p > 0.92 Ha: p < 0.92 Ha: p = 0.92 QC. H0 : p 0.92 H : p = 0.92 ., . 8 . an example Get more help … ( Clear all) , rks Profiles Tab Window Help (@» t •1’ 1 9 Do Homework – Unit 9 Problem Set n/Student/PlayerHomework.aspx?homeworkld=666760113&questionld=1&flushed=false&cld=7712941¢erwin=yes 024 to Mar 15 2024 – Section 05 it 9 Problem Set ,~ Lis bely Valdes Question 3, 9.1.25 Part 1 of 2 03/07/24 9:57 PM HW Score: 0%, Oof 12 points 0 Points: 0 of 1 CZ) Save • Assume that male births and female births are equally likely. The following table shows the probabilities of various numbers of male baffies in a random sample of 100 births. Assume that the test is for a bias against males. A random ·sample of 100 births has 42 male babies. Is this result significant at the 0.01 level? What is the P-value for this result? Number of males among 100 • Probability 35 or fewer 0.002 40 or fewer 0.028 45 or fewer 0.184 48 or fewer 0.382 . What is the P-va/ue for this result? 0 less than 0,028 but more than 0.002 O fess than 0.184 but more than· 0.028 O less than 0.382 but more than 0.184 0 equal to 0.184 nexample Get more help • ( Clear all ) ~r.aspx?cultureld=&theme=math&style=highered&disableStandbylndicator=true&assignmentHandleslocale=true&enablele… Q s tab Window t Help • • Q Do Homework – Unit 9 Problem Set PlayerHomework.aspx?homeworkld=666760113&questionld=1&flushed=false&cld=7712941¢erwin=yes – – —— Lisbely Valdes ar 15 2024 – Section 05 blem Set If- Question 4, 9.2.15-T Part 1 of 3 — – – – – – – – — 03/07/24 9:57 PM HW Score: 0%, O of 12 points 0 Points: O of 1 (?) Save .. Find the value of the standard score, z, and determine whether to reject the null hypothesis ” at a 0.01 significance level. Is the alternative hyp’bthesis supported? H0 : µ = 19.7 seconds, H8 : µ > 19.7 ~econds, n = 81, x= 20.1 seconds, a= 2.5 seconds The value of the standard score is (Round to two decimal places as needed.) , I . J an example Get more help …. ( Clear all) Oo Hom ewo rk – Unit 9 Prob lem Set ,ttcm ,ewo dLa sp~ hom ewo rkld =66 676 011 3&q ues tion ld=1 &flu she d=fa lse& cld= n12 941 2024 . . Section 05 Lisbely Valdes Question 5, 9.2.17-T Find the valu e of the stan dard scor e, z, and H0 : µ = 19.3 mete rs, H 8: µ – – 03/0 7/24 9:57 PM HW Score: 0%, O of 12 points Points: O of 1 (1) 0 Part 1 of 3 ‘IS the alter nativ e hypb thes is supp orted &ce nter win: ::ye s ? • dete rmin e whe ther to rejec t the null hypo thes 19.3 mete rs, n = 144, x = 18.8 meters, a= Save is at a 0.01 significance level. 1.3 mete rs The valu e of the stan dard score is (Rou nd to two deoi mal plac es as need ed.) , ~xample • Get mo re hel p ….. Cl&• JU s • ( Cle ar all ) ·’1 d tl • fJ • 111• • • -• -• Do Homework – Unit 9 Problem Set t/PfayerHomework.aspx?homeworkld=666760113&questionld=1 &flushed=false&cld= 7712941 ¢erwin=yes ~ar 15 2024 – Section 05 Lisbely Valdes Question 6, 9.2.21-T oblem Set 03/07/24 9:57 PM HW Score: 0%, O of 12 points Points: Oof 1 0 Part 1 of 2 (7) Save . Find the P-value that corresponds to the given standard score, and determine whether ‘ to reject the null hypothesis at I I~ the 0.01 significance1evel. Is the alternative hypothesis supported? z = – 2.2 for H0 : µ = 26 centimeters _and H8 : µ < 26 centimeters The P-value is (Round to three decimal places as needed.} , •. J tw an example Get more help • ( Clear all ) 0 _.. . . . . . ___,, ·) r/Ptayer.aspx?cuttureld=&theme=math&style=highered&disableStandbylndicator=true&assignmentHandlesLocale=true&enablele ••• 1 • Clfiltl s • • • • 1111 fiJ -• Do HomewOf’k – Unit 9 Problem Set mtomeworit,aso x?homeworkJd= 666760113&que stionld=1&flush ed=false&cld=n 12941¢erw in::yes I 202A • Section 05 Lisbely Valdes Que • mSet 7, 9.2.39-T Patt 1 of 4 03/07/24 9:57 PM HW ~re: 0%, O of 12 points 0 Points: 0 of 2 (?) Save . ; • The label on the cofd medicine Dozenot lists as an active ingredient 600 mitttgrams of acetaminophen per fluid ounce. The Food and Drug Administration tests 65 one-ounce portions of the medicine and finds that the mean amount of acetaminophen for this sample is 588.5 milligrams with a standard deviation of 20.9 milligrams. Test the claim of the FDA that the medicine does not contain the required amount of acetaminophen. —–:—– ———- L:..:··..!. ..J·l – – – – – – – – – – – – – – – – – – – – State the null and alternative hypotheses. Choose the wr•ect answet. 0 A. H0_: µ = 600 milligrams oe Ho: µ =600 milligrams H8 : µ < 600 milligrams H0 µ ‘I- 600 milligrams 0 C. H0 : µ ‘I- 600 mllllgrama 0 0. He,: µ • 600 milligrams H8 : µ = 600 milligrams H4 : µ > 600 milligrams , , example • Get more help …. Cl&IO • • ( Clear all) .t ·1 ‘8.r • Ia • • • • a a • 11 a • Homewortc – •ffr r 11 a Do 1 aa a Unit 9 Problem Set a ‘1 . i ,ayer~mework.as~homeworkfd=666760113&questionld=1&flushed=false&cld=n12941¢erwin=yes Lisbely Valdes ·15 2024 – Sectio·n 05 Question 8, 9.2.43-T lemSet HW Score: 0%, O of 12 points 0 Points: Oof 2 Part 1 of 4 Q) 03/07/24 9:58 PM Save • A random sample of 33 subjects who identified themselves as compulsive buyers was obtained and given a questionnaire. They f,ad a mean questionnaire score of 0.57 with a standard deviation of 0.15. Test the claim that the population of seff-identffied compulsive buyers has a mean greater than the mean of 0.57 for the general population. Use a 0.05 significance level. .. f State the null and alternative hypotheses . . 0 A. H0 : µ = 0.57 0 8. H0 : µ = 0.57 H8 : µ > 0.57 H8 : µ, 0.57 0 C. H0 : µ¢0.57 Co. H0 : µ =0.57 I H8 : µ = 0.57 H8 : µ < 0.57 , .example Get more help • ( Clear all) r.aspx?cultureld=&theme::math&style=highered&disableStandbylndicator=true&assignmentHandleslocale::true&enablele… • areas ‘r ill • • • • • • rm s • ] tab Window t Help • · Q Do Homework – Unit 9 Problem Set ,yerHomework.aspx?homeworkld=666760113& questionld=1&flushed=false&cld=7712941&cen terwin=yes —— – Lisbely Valdes 15 2024 – Section 05 Question 9, 9.3.12-T lem Set HW Score: 0%, 0 of 12 points Points: O of 1 0 Part 1 of 4 (7) 03/07/24 9:58 PM Save • One study, based on responses from 1,018 randomly selected teenagers, concluded that 39% of teenagers cite grades • as their greatest SOUfCe of pressure. Use a 0.05 significance level to test the claim that fewer than half of all teenagers in the population feel that grades are their greatest source of pressure. Formulate the null and alternative hypotheses. Choose the correct answer below. 0 A. H0 : p < 0.5 QB. H0 : p = 0.5 Ha: p = 0.5 H8 : p < 0.5 0 C. H0 : p = 0.5 0 0. H0 : p = 0.5 H8 : p ¢ 0.5 H8 : p > 0.5 I , • J , example Get more help … ( Clear all) ~r.aspx?cultureld=&theme=math&style=highered&disableStandbylndicator=true&assignmentHandlesLocale=true&enablele… • crae • • • • • • n ,a • ID Do Homework – Unit 9 Problem Set ‘PlayerHomework.aspx?homeworkld=666760113&questio nId=1 &fl ushed=false&cld=7712941 ¢erwin=yes —-i Lisbely Valdes ar 15 2024 – Section 05 (1) HW Score: 0%, 0 of 12 points Question 10, 9.3.14-T blem Set 03/07/24 9:58 PM 0 Points: Oof 1 Part 1 of 4 Save One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from 11.4% in 1997) to 9.9% now. Suppose.rs survey in a large high school reveals that, in a random sample of 1,040 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. 0 A. H0 : p < 0.099 0 B. H0 : p = 0.099 Ha: p = 0.099 • Ha: p > 0.099 0 C. H0 : p = 0.099 0 D. H0 : p = 0.099 Ha: p¢0’.099 H8 : p < 0.099 , I an example ter.aspx?cultu … Get more help • Clear all)
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