7 Th mean weig 6 bg 6 carrb s is \(\mu \mathrm { klg }\) ams. An is \(\mathbf { p }\) cto wish s to test wh th \(\mathrm { r } \mu = 20\) He weig a ranch sampe 6 tb \(g\) an \(s\) resh ts are sm marised \(s\) fb low \(s\). $$\Sigma x = 430 \quad \Sigma x ^ { 2 } = 0$$ Carryo the test at the to sig fican e lee 1 . If B e th follw ig lin dpg to cm p ete th an wer(s) to ay q stin (s), th q stin \(\mathrm { m } \quad \mathbf { b } \quad \mathrm { r } ( \mathrm { s } )\) ms tb clearlys n n