What type of test should be used to answer the following A r
What type of test should be used to answer the following: A researcher wants to know if a relationship exists between tar and nicotine in cigarettes. Various brands have the following tar and nicotine amounts respectively:
Brand A 9 and 0.8
Brand B 13 and 1.1
Brand C 16 and 1.2
Brand D 18 and 1.4
Brand E 6 and 0.6
A. Chi - Square Test for independence
B. Difference Between means test, independent samples (2-sample t test)
C. Difference Between proportions test, independent samples (2-prop-z test)
D. Chi - Square Goodness of Fit
E. Means Test using standardized normal distribution (1 sample z-test)
F. Means Test using students t distribution (1 sample t-test)
G. Proportion test (-prop-z-test)
H. Analysis of variance (ANOVA)
I. Correlation and Regression test (lin reg t- test)
Solution
\"A researcher wants to know if a relationship exists between tar and nicotine in cigarettes.\"
As he wants a relationship, then he must do
OPTION I: Correlation and Regression test (lin reg t- test) [ANSWER, I]
