Just set it equal to zero and solve using the quadratic equation.
Answer:
im too eionf0qn3490fn0wiopf
Step-by-step explanation:
Answer:
it should be 7 fasho
Step-by-step explanation:
Answer: $ 67.03
Step-by-step explanation:
Given : The average expenditure in a sample survey of 50 male consumers was $135.67, and the average expenditure in a sample survey of 38 female consumers was $68.64.
i.e. 
The best point estimate of the difference between the two population means is given by :-

Hence, the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females : $ 67.03
The step in this problem is do 1/4 + 1/3= ?
and see what you get