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How is the test statistics calculated

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Reference no: EM132177447

A school is implementing an SAT preparation program. To study the program's effectiveness, the school looks at participants' SAT scores before starting the program and after completing the program. The results are shown in the table.

A

B

C

D

E

F

G

Before

1060

980

1140

1040

1000

960

1200

After

1040

1020

1180

1040

980

1020

1240

Difference

20

-40

-40

0

20

-60

-40

How is the test statistics calculatedHow is the test statistics calculated? (Note that intermediate calculations? (Note that intermediate calculations have been rounded to 2 decimal places.)

Reference no: EM132177447

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