Exhibit GGC $2-7$

n $=30$H$0$: $2=500$s$2=625$Ha: $2500$

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Refer to Exhibit GGC $2-7.$ At the $1\%$ level of significance, the null hypothesis $\_\_\_\_\_.$

Question $5$ options:

a$)$

should be rejected

b$)$

should not be rejected

c$)$

should be revised

d$)$

should be retested