Suppose that a single y observation is made at each of the
Chapter 0, Problem 13.13(choose chapter or problem)
Suppose that a single y observation is made at each of the x values 5, 10, 15, 20, and 25. a. If s 4, what is the standard deviation of the statistic b? b. Now suppose that a second observation is made at every x value listed in Part (a) (for a total of 10 observa-tions). Is the resulting value of sb half of what it was in Part (a)? c. How many observations at each x value in Part (a) are required to yield a sb value that is half the value calculated in Part (a)? Verify your conjecture.
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