principal bENe nigh Of absences ents ASsume lat a nigh scr ability to perform on standardized tests. He randomly selects a sample of 9 students who had 5 or nore absences in the school year. The average ACT Composite score for this sample is X = 19 vith s = 4.9. ACT Composite scores are normally distributed with µ = 21.0. Do the data support he claim that the high number of absences hinders the students' ability to perform on tandardized tests, using a = .05? Please show the four-step hypothesis test. %3D

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Assume that a high school principal believes that high number of absences hinders the students'
ability to perform on standardized tests. He randomly selects a sample of 9 students who had 5 or
more absences in the school year. The average ACT Composite score for this sample is X = 19
with s = 4.9. ACT Composite scores are normally distributed with u = 21.0. Do the data support
the claim that the high number of absences hinders the students' ability to perform on
standardized tests, using a = .05? Please show the four-step hypothesis test.
%3D
Transcribed Image Text:Assume that a high school principal believes that high number of absences hinders the students' ability to perform on standardized tests. He randomly selects a sample of 9 students who had 5 or more absences in the school year. The average ACT Composite score for this sample is X = 19 with s = 4.9. ACT Composite scores are normally distributed with u = 21.0. Do the data support the claim that the high number of absences hinders the students' ability to perform on standardized tests, using a = .05? Please show the four-step hypothesis test. %3D
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