2.(1 Point for part a,1 point for part b;total 2 points)A company has developed a new fishing line,which

2.(1 Point for part a,1 point for part b;total 2 points)A company has developed a new fishing line,whichthe company claims has a mean breaking strength ofμ=l5 kilograms with a standard deviation of0.5kilogram.To test the hypothesis that kilograms against the alternative thatμ