Since the number of estimates is the same as Problem D3's, the quartiles and median will be in the same positions. Count the values in increasing order to find them. Close Tip
Problem D5
Create two box plots for the Five-Number Summaries you generated in Problems D3 and D4, placing them side by side on the same scale to make them easier to compare.
Problem D6
What do the box plots suggest about the effect of sample size on the accuracy of the estimates? In particular, how do the box plots illustrate the following:
a.
How much the estimates vary from sample to sample
b.
How close the estimates are to the actual value of 500
Video Segment In this video segment, the participants discuss what percentages of their data fell in particular interval ranges for samples of size 10 and 20. Professor Kader then introduces the Central Limit Theorem to further discuss the connection between probability and statistics. What is the give-and-take between selecting an interval range and sample size when designing a statistical investigation? How would you use this information to plan a statistical investigation? How can you be more precise when taking a sample size? How can you be more accurate?
If you're using a VCR, you can find this segment on the session video approximately 16 minutes and 2 seconds after the Annenberg Media logo.
