About 42.3% of californians and 19.6% of all americans over age five speak a languag at home. using your class as the sample, conduct a hypothesis test, at a 1% level of significance, to determine if the percent of the students at your school who speak a language other than english at home different from 42.3%.case study 2: language survey about 42.3% of californians and 19.6% of all americans over age five speak a language other than english at home. using your class as the sample, conduct a hypothesis test, at a 1% level of significance, to determine if the percent of the students at your school who speak a language other than english at home is different from 42.3%.