A random sample of 25 observations is selected from a normally distributed population. The sample variance is 10. In the 95% confidence interval for the population variance, the upper limit will be:
A. 6.097
B. 17.331
C. 19.353
D. 17.110

Based on the sample data, the 90% confidence interval limits for the population mean are LCL=170.86, UCL=195.42. If the 10% level of significance were used in testing the hypotheses $H_0: \mu = 201$ vs. $H_1: \mu \not=201$, the null hypothesis:
A. would be rejected
B. would not be rejected
C. would have to be revised
D. None of the above