Based on sample data, the 90% confidence interval limits for the population mean are LCL = 170.86 and UCL = 195.42. If the 10% level of significance were used in testing the hypotheses vs. , what would you conclude?
A) The null hypothesis would be rejected.
B) The null hypothesis would not be rejected.
C) The null hypothesis would have to be revised.

Question

Based on sample data, the 90% confidence interval limits for the population mean are LCL = 170.86 and UCL = 195.42. If the 10% level of significance were used in testing the hypotheses  vs.  , what would you conclude?
A) The null hypothesis would be rejected. 
B) The null hypothesis would not be rejected. 
C) The null hypothesis would have to be revised.

Quizplus · Accepted Answer

Since the confidence interval does not include the null hypothesis value (which is not given), we can conclude at the 10% level of significance that the null hypothesis would be rejected in favor of the alternative hypothesis.

Based on Sample Data, the 90% Confidence Interval Limits for the Population