In an initial drugs test, 5.8% of job applicants tested negative. It is claimed that now the rate is lower. A random sam

[answerhappygod]

In an initial drugs test, 5.8% of job applicants tested
negative. It is claimed that now the rate is lower. A random sample
of 1520 current job applicants ended in 58 negative results.
1. Construct a 95% confidence interval for p, the true
proportion of negative results in the population (classical
form).
2. Conduct a statistical test of hypothesis on this claim
at the 0.01 level of significance, by the same 5 steps as
above.