14. ta a prychological tnt that rmeasures the m,ti ation, attnade t ward school,

Question

14. ta a prychological tnt that rmeasures the m,ti ation, attnade t ward school, and tudy habits at didnts. S rras range from?to 200 rhe The Survey of study mean scere for U.S. colge shudents is about 115, and the standard d students who are at lear 30 years of age. Their mean score is??133.2 Assuming that (r-30 tar the poplutlon of alder itudents. ilabits and Alttudm ssuA n is about 30A teacher who suspects that older students have better atibuden toeard schoel gives the SGHA to 2:s Carry out a test of 0,0012

Explanation / Answer

t = ( x - mean)/(s/sqrt(n))
= ( 133.2 - 115)/930/sqrt(25))
= 3.0333

p value is calculated using t = 3.0333 with df = 24

p value = 0.0024

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