urgent

4. From a data sample, a 95% confidence interval for the average age of a population is constructed as [45,50]. What is the interpretation of this confidence interval?

- There is a 95% confidence that a person's age is between 45 and 50

- There is a 95% probability that a person's age is between 45 and 50

- An average age between 45 and 50 is consistent with the data sample

- An average age between 45 and 50 is contradicted by the data sample

5. An analyst has created a distribution from data regarding delivery times for a particular product. Which of the following could he do with it?

- he can use this distribution to predict future delivery times, since this is actual observed data

- he should try to identify the underlying distribution of delivery times

- he can predict delivery times beyond the range of the observed data

- he should discard the data

6. Which tool is best used to display subsets of data from different viewpoints?

- slicers

- pivot tables

- combo boxes

- pie charts