A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased. The following is a contingency table from a random sample of 300 individuals: Using $\alpha$=.05, appropriate decision is ___.
A) reject the null hypothesis and conclude the two variables are not independent
B) reject the null hypothesis and conclude the two variables are independent
C) do not reject the null hypothesis and conclude the two variables are not independent
D) do not reject the null hypothesis and conclude the two variables are independent
E) do nothing

Question

A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased. The following is a contingency table from a random sample of 300 individuals:  Using $\alpha$=.05, appropriate decision is ___.
A) reject the null hypothesis and conclude the two variables are not independent 
B) reject the null hypothesis and conclude the two variables are independent 
C) do not reject the null hypothesis and conclude the two variables are not independent 
D) do not reject the null hypothesis and conclude the two variables are independent 
E) do nothing

Quizplus · Accepted Answer

The Answer of A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased. The following is a contingency table from a random sample of 300 individuals:  Using $\alpha$=.05, appropriate decision is ___.
A) reject the null hypothesis and conclude the two variables are not independent 
B) reject the null hypothesis and conclude the two variables are independent 
C) do not reject the null hypothesis and conclude the two variables are not independent 
D) do not reject the null hypothesis and conclude the two variables are independent 
E) do nothing

A Gasoline Distributor Wonders Whether an Individual's Income Level Influences α\alphaα

A Gasoline Distributor Wonders Whether an Individual's Income Level Influences $\alpha$