The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers sampled said they would return to work, what is our decision?
Do not reject the null hypothesis because 1.457 lies in the region between -2.054 and 2.054
Do not reject the null hypothesis because 1.457 lies in the region between -2.326 and 2.326
Reject the null hypothesis because 43% is less than 38%
Do not reject the null hypothesis because 43% lies in the area between 0% and 38%