Pre-school Attendance and Pre-algebra Achievement In these times of educational

Question

Pre-school Attendance and Pre-algebra Achievement In these times of educational reform, attention has been focused on pre school for all children. Since many districts are facing budget cuts, funding pre-school programs may impact other offerings. Before making their recommendations, administrators in a large urban district take a random sample of so seventh graders and compare the not. If achievement is independent of attending pre-school then the proportions at there is an association between attending preschool and pre-algebra achievement. Pre-school No Pre-school Tota Below grade leve 8 14 21 15 Advanced Total 15 20 30

Explanation / Answer

a) Attending pre-school

b) Achievement in pre school alzebra.

d) Compute exected frequency:

X^2=Summation(Obs-Exp)^2/Exp=(8-5.6)^2/5.6+...+(15-15)^2/15=2.857

e) X^24,0.05=9.488

g) The test statistic do not fall in critical region, therefore, fail to reject H0.

h) The association is not statistically significant.

i) Crammer's V=sqrt [2.857/100*2]=0.12

Te association is week.

5.6[(28*20)/100] 8.4 14 8.4 12.6 21 6 9 15

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