The correct answer is C. no correlation
All you have to do is find what two factor mutiply up to 236.9
Answer:
The system has zero solutions.
Answer:
Step-by-step explanation:
Volume of a cone= ⅓πr²h
=⅓×3.142×5²×6
= 157cm²
The test statistic for difference between two means is given by:
Thus, the appropriate test statistic is given by:
At 10% level of significance, the rejection region is given by
where:
for 10% level of significance is 1.65
Since z = 1.66 >
, we reject the null hypothesis, which means that <span>the traffic control strategy does not reduce carbon monoxide concentrations by at least 2 ppm.</span>