MTH126 Applied Statistics Final Exam
Download this Assignment Solution for help with your MTH126 Applied Statistics Final Exam.
Alexander Wilson
Contributor
5.0
38
about 1 month ago
Preview (3 of 9)
Sign in to access the full document!
1
MTH126 Applied Statistics Final Exam
MTH126 – Applied Statistics Final Exam – February 22, 2013
~ Please show your work ~
Name_________________________________________________________________________
In the box to the right, enter ‘T’ for ‘True or ‘F’ for False for each of the following questions (1 point each)
1 One-tailed tests reflect a non-directional hypothesis. F
2 The expected value is also referred to as the ‘long-term’ average or mean. T
3 The test statistic for any chi-square test is always less than or equal to zero. F
4 The f-distribution, like the normal distribution is symmetrical. F
5 The mean, median, and mode typically differ substantially in normally distributed data. F
6 If two variables are significantly correlated, we can conclude that one variable causes the change in the other variable. F
7 A normal distribution exists for every combination of mean and standard deviation T
8 A correlation of -.9 is stronger than a correlation of .1 T
9 If the value for one variable goes down when the value for another variable goes up, these variables are said to be negatively correlated. T
10 The mode is highly sensitive to outliers or extreme results. F
11 In an ANOVA test, the null hypothesis states that at least two of the group means are not equal. F
12 The mathematical tool used to study randomness is called probability. T
13 Mutually exclusive events cannot occur at the same time. T
14 The coefficient of determination represents the percent of variation in y that is NOT explained by variation in x using the regression line F
MTH126 Applied Statistics Final Exam
MTH126 – Applied Statistics Final Exam – February 22, 2013
~ Please show your work ~
Name_________________________________________________________________________
In the box to the right, enter ‘T’ for ‘True or ‘F’ for False for each of the following questions (1 point each)
1 One-tailed tests reflect a non-directional hypothesis. F
2 The expected value is also referred to as the ‘long-term’ average or mean. T
3 The test statistic for any chi-square test is always less than or equal to zero. F
4 The f-distribution, like the normal distribution is symmetrical. F
5 The mean, median, and mode typically differ substantially in normally distributed data. F
6 If two variables are significantly correlated, we can conclude that one variable causes the change in the other variable. F
7 A normal distribution exists for every combination of mean and standard deviation T
8 A correlation of -.9 is stronger than a correlation of .1 T
9 If the value for one variable goes down when the value for another variable goes up, these variables are said to be negatively correlated. T
10 The mode is highly sensitive to outliers or extreme results. F
11 In an ANOVA test, the null hypothesis states that at least two of the group means are not equal. F
12 The mathematical tool used to study randomness is called probability. T
13 Mutually exclusive events cannot occur at the same time. T
14 The coefficient of determination represents the percent of variation in y that is NOT explained by variation in x using the regression line F
Preview Mode
Sign in to access the full document!
100%
Study Now!
XY-Copilot AI
Unlimited Access
Secure Payment
Instant Access
24/7 Support
Document Chat
Document Details
University
Calhoun Community College
Subject
Statistics