All of the following statements are true about t tests EXCEPT a- .pdf

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All of the following statements are true about t tests EXCEPT: a- they involve hypothesis-testing procedures b- they are used when the population variance is unknown c- they are used when the population variance is known d-they compare t scores from a sample to a comparison distribution called a t distribution Thanks! Solution b- they are used when the population variance is unknown.

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Among 13200 submitted abstracts that were blindly evaluated w/authors and institutions not identify, 26.7% were accepted for publication. Among 13,433 abstract that were not blindly evaluated, 29.0% were accepted. Use 0.01 significance level to test the claim that the acceptance rate is the same with or without blinding. How might results be explained? Solution Given n1=13200, p1=0.267 n2=13433, p2=0.29 The test hypothesis is Ho:p1=p2 Ha: p1 not equal to p2 The test statistic is Z=(p1-p2)/[p1*(1-p1)/n1 + p2*(1-p2)/n2] =(0.267-0.29)/sqrt(0.267*(1-0.267)/13200 + 0.29*(1-0.29)/13433) = -4.19 Given a=0.01, the critical value is Z(0.005)=-2.58 (check standard normal table) Since Z= -4.19 is less than -2.58, we reject Ho. So we can not conclude that the acceptance rate is the same with or without blinding.

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Amie, Inc., has 100,000 shares of $2 par value stock outstanding. Prairie Corportaion acquired 30,000 of Amie\'s shares on January 1, 2012, for $120,000 when Amie\'s net assets had a total fair value of $350,000. On July 1, 2015, Prairie bought an additional 60,000 shares of Amie from a single stockholder for $6 per share. Although Amie\'s shares were selling in the $5 range around July 1, 2015. Prairie forecasted that obtaining control of Amie would produce significant revenue synergies to justify the premium price paid. If Amie\'s net identifiable asstets had a fair value of $500,000 at July 1, 2015, how much goodwill should Prairie report in its postcombination consolidated balance sheet? A. $60,000 B. $90,000 C. $100,000 D. $-0- Solution.

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All of the following are components of active listening EXCEPT: Deflecting advising Reflecting Filtering ProbingA. DeflectingB. advisingC. ReflectingD. FilteringE. Probing Solution answer D -filtering we know that active listening means that a communication technique for counselling, training and and conflict resolution. so the listner feed back the speaker. the important componant of active communication is that deflecting advising reflecting probing.

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