Bmal 590 Business Common Professional Components Questions

Section 1: What is Statistics? 1. You take a random sample of 100 students at your university and find that their averageGPA is 3.1. If you use this information to help you estimate the average GPA for all students at your university, then you are doing what branch of statistics?Descriptive statisticsInferential statisticsSample statisticsPopulation statistics2. The significance level of a statistical inference measuresthe proportion of times a conclusion about a population will be correct in the long run.the proportion of times a conclusion about a population will be wrong in the long run.the proportion of times an estimation procedure will be correct in the long run.the proportion of times an estimation procedure will be wrong in the long run.3. The confidence level of a statistical inference measuresthe proportion of times a conclusion about a population will be correct in the long run.the proportion of times a conclusion about a population will be wrong in the long run.the proportion of times an estimation procedure will be correct in the long run.the proportion of times an estimation procedure will be wrong in the long run.4. A company has developed a new computer sound card whose average lifetime is unknown. In order to estimate