2005, Form B, Question 5 · 4 points
Walking speed and pulse rate regression
Write the fitted line from regression output, decide whether the slope and intercept have sensible meanings in context, and find a margin of error for a 98 percent interval for the slope.
This exam had six free-response questions, each scored from 0 to 4. Its Question 6, the Investigative Task, is no longer part of the exam. The current exam has 4 free-response questions in 90 minutes. The skills these questions practice still count.
Not in the current course. Part (c) asks for a confidence interval for the slope of a regression line, which the current course no longer includes.
Lessons this question draws on
1 Read the question
The question is College Board's, from the 2005, Form B exam. It starts on page 8 of the PDF. College Board no longer posts this exam, so it opens from the copy of College Board's PDF that the Internet Archive saved on December 4, 2025.
2 Write your answer
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3 Score it
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Scoring guidelines (PDF, page 13)
Question, scoring guidelines and Chief Reader report: College Board, from the Internet Archive. The title and summary are ours.