Content Frame
Note for screen reader users: There is text between the form elements on this page. To be sure that you do not miss any text, use item by item navigation methods, rather than tabbing from form element to form element.
Skip Breadcrumb Navigation
Home  arrow Chapter 3  arrow Self-Study Quizzes  arrow Multiple Choice

Multiple Choice



This activity contains 18 questions.

Question 1.
Calculate the median value of the following eight numbers: 14, 34, 50, 10, 24, 11, 32, 20.


Open Hint for Question 1 in a new window.
 
End of Question 1


Question 2.
Calculate the standard deviation of the following sample of size four: 3, 4, 7, 10.


Open Hint for Question 2 in a new window.
 
End of Question 2


Question 3.
The least squares method minimizes which of the following?


Open Hint for Question 3 in a new window.
 
End of Question 3


Question 4.
If the sample correlation coefficient rxy is equal to -1.00, then


Open Hint for Question 4 in a new window.
 
End of Question 4


Question 5.
Calculate the interquartile range of the following 11 numbers: 14, 34, 50, 10, 24, 11, 32, 20, 9, 51, 7.


Open Hint for Question 5 in a new window.
 
End of Question 5


Question 6.
The strength of the linear relationship between two numerical variables may be measured by the


Open Hint for Question 6 in a new window.
 
End of Question 6


Question 7.
In a simple linear regression problem, rxy and b1


Open Hint for Question 7 in a new window.
 
End of Question 7


Question 8.
Calculate the covariance of the following sample of four (x, y) pairs: (1, 4), (2, 9), (4, 6), and (5, 9).


Open Hint for Question 8 in a new window.
 
End of Question 8


Question 9.


Referring to Table 3-1, what is the estimated slope parameter for the candy bar price and sales data?


Open Hint for Question 9 in a new window.
 
End of Question 9


Question 10.


Referring to Table 3-1, if the price of the candy bar is set at $2, the predicted sales will be ________.


Open Hint for Question 10 in a new window.
 
End of Question 10


Question 11.
Which of the following statements about the median is NOT true?


Open Hint for Question 11 in a new window.
 
End of Question 11


Question 12.
In a perfectly symmetrical distribution


Open Hint for Question 12 in a new window.
 
End of Question 12


Question 13.
When extreme values are present in a set of data, which of the following descriptive summary measures are most appropriate?


Open Hint for Question 13 in a new window.
 
End of Question 13


Question 14.
Calculate the correlation coefficient of the following sample of four (x, y) pairs: (1, 4), (2, 9), (4, 6), and (5, 9).


Open Hint for Question 14 in a new window.
 
End of Question 14


Question 15.
At a highway checkpoint, the average speed of a passing car was measured at 45 miles per hour with a standard deviation of 4 miles per hour. According to Chebychev's Theorem, what percentage of cars would you expect to be traveling between 33 and 57 miles per hour?


Open Hint for Question 15 in a new window.
 
End of Question 15


Question 16.


Referring to Table 2-3, the mean carbohydrates in this sample is ________ grams.


Open Hint for Question 16 in a new window.
 
End of Question 16


Question 17.


Referring to Table 2-3, the variance of the carbohydrate amounts is ________ (grams squared).


Open Hint for Question 17 in a new window.
 
End of Question 17


Question 18.
Which of the following is not part of the five-number summary?


Open Hint for Question 18 in a new window.
 
End of Question 18





Pearson Copyright © 1995 - 2011 Pearson Education . All rights reserved. Pearson Prentice Hall is an imprint of Pearson .
Legal Notice | Privacy Policy | Permissions

Return to the Top of this Page