all A sample of 28 cows slaughtered at the mariakani slaughter house reported a variance of 13.?6 lcg. at 5% level of significance does this indicate the variance is less than 115 kg. [5 Marks] bl In a population consisting of 50 sates a sample of It? states had these taxes recorded |[in million dollars]| 112 120 93 55- 1'}. 35 99 124 6-4 150 15D 55 l 132 20 1'0 93 Construct a 99% confidence interval . [E- Marlcs ] c} A researcher wishes to determine whether the salaries of professional nurses employed by private hospitals are higher than those employed by government owned hospitals. She selected a sample of nurses from each type of hospital and calculates the means and standard deviations of salaries as shown in the table below: Private Government x1 = 26 son \"a = 25400 51: con 52:450 n1 = 10 n1=8 At x=.1 does private hospitals pay more than government hospitals