(2 points) for each of the following situations, calculate the p-value and determine if h0 is rejected at a 5% significance level with the test statistic, -1.88. all numbers should be reported to four decimal places. (1 points) a) consider a hypothesis test concerning a population mean with σ known and n = 1000. (0.3 pts.) h0: μ = 643 ha: μ < 643(2 points) for each of the following situations, calculate the p-value and determine if h0 is rejected at a 5% significance level with the test statistic, -1.88. all numbers should be reported to four decimal places. (1 points) a) consider a hypothesis test concerning a population mean with σ known and n = 1000. (0.3 pts.) h0: μ = 643 ha: μ < 643