1. At a local university, only 62% of the original freshmanclass graduated in fo
ID: 2917287 • Letter: 1
Question
1. At a local university, only 62% of the original freshmanclass graduated in four years. Has this percentage changed? a. Ho:p<0.62 Ha:p=0.62 b. Ho:p=0.62 Ha:p#0.62 c. Ho:p#0.62 Ha:p=0.62 d. Ho:p=0.62 Ha:p<0.62 2. A reserach company claims that more than 55% of Americansregulary watch CNN News. You decide to test this claim and ask arandom sample of 425 Americans if they watch thisnetwork regularly. Of the 425, 255 responded. Calculate the teststatistic z that would be used for a test of hypothesis. a. -2.07 b. 1.645 c. -1.96 d. 2.07 e. None of the above 3. An airline claims that the no-show rate for passengersbooked on its flights is less than 6%. Of 380 randomly selectedreservatins, 18 were no-shows. Find the P-value for a test of theairline's claim. a. 0.1499 b. 0.0746 c. 0.1230 d. 0.060 e. 0.3508 1. At a local university, only 62% of the original freshmanclass graduated in four years. Has this percentage changed? a. Ho:p<0.62 Ha:p=0.62 b. Ho:p=0.62 Ha:p#0.62 c. Ho:p#0.62 Ha:p=0.62 d. Ho:p=0.62 Ha:p<0.62 2. A reserach company claims that more than 55% of Americansregulary watch CNN News. You decide to test this claim and ask arandom sample of 425 Americans if they watch thisnetwork regularly. Of the 425, 255 responded. Calculate the teststatistic z that would be used for a test of hypothesis. a. -2.07 b. 1.645 c. -1.96 d. 2.07 e. None of the above 3. An airline claims that the no-show rate for passengersbooked on its flights is less than 6%. Of 380 randomly selectedreservatins, 18 were no-shows. Find the P-value for a test of theairline's claim. a. 0.1499 b. 0.0746 c. 0.1230 d. 0.060 e. 0.3508Explanation / Answer
1) b is the correct answer. H0:p=0.62 versus Ha:p|=0.62 2) d)2.07 c) a is the correct answer 0.1499.Related Questions
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