A company wants to know if more than 80% of people approve of their new advertising campaign. A random sample of 150 likely voters is taken, and 124 of them (83%) say that they support the proposition. In order to conduct a statistical analysis, the One Proportion applet was used to see if the candidate's claim is plausible. Use the dot plot generated by the applet (pictured above) to answer the questions.

Is the variable(foot print) below normally distributed or skewed? If skewed, indicate the direction.   male shoe print #1 32.2 #2 30.1 #3 29.0 #4 31.8 #5 29.4

Draw a scatter plot for the data in the following table. -4 -3 -2 -1 0 1 2 3 4 LO y 0.5 3 4.8 6 7.1 7.2 8.3 8.9 9 9.9 9 8 7 6 5 4 3 21 + -4-3 -2 -1 1 2 3 4 5 Clear All Draw: Dot

5. Suppose that 25 students in a science class took a test. Using the box-and-whisker plot of the test scores below, answer the following questions. A. Determine whether the statement is true (T) or false (F). Science Test Scores a) The mean of the scores is 81. b) The mean of the scores is 78.6. c) About 50% of the students received a score of 81. d) More than 50% of the students received a score above 73. 54 73 81 90 95 + 40 50 60 70 80 90 100 GFreemathresource.com Answer: a) b) c) d) B. If a student received a score of 10 instead of 54, would it more heavily influence the mean or the median? Мean Median C. If a student received a score of 10 instead of 54, the standard deviation would be most likely: Smaller Larger Little Changed