Answer:
chi-square
Step-by-step explanation:
According to the given situation, Chi-square statistic would be considered for as we have to determine whether working hours and smoking are attached with each other or not.
To know whether working hours based on smoking or there is an important relationship between both- So Chi-square statistic would be used
Therefore the test that should be used is chi-square
Answer:
Rational
Step-by-step explanation:
Answer:
Step-by-step explanation:
Equation of line in point slope form is given as:
Plugging the values of m and 
, we find:
This is the required equation of line.
Answer:
Point C
Step-by-step explanation:
At point C, the graph is changing from decreasing to increasing.
