rohini

Ravi prepared a solution of sodium chloride by mixing 5.85g of salt in 1l of water.Find molar mass of sodium chloride?

a)statement of hypothesis Null hypothesis: μ=21 Alternative hypothesis:μ ≠21 b)Test statistic value =4 c) rejection rule - reject if IzI> zα/ 2 d) zα/ 2=1.28 e)since 4 > 1.28 , reject the null hypothesis