SOLUTION: Assume you are the owner of a highly-respected law firm. The data below shows the number of cases won each month by two lawyers who work for you.
Lawyer A 42 61 48 54 50 49
La
Algebra.Com
Question 1171145: Assume you are the owner of a highly-respected law firm. The data below shows the number of cases won each month by two lawyers who work for you.
Lawyer A 42 61 48 54 50 49
Lawyer B 51 23 82 44 79 25
On average, would you say that these lawyers are performing equally? Why or why not? If you are looking for a lawyer with a reliable number of wins, which lawyer would you choose?
What statistic did you use to come to that conclusion? Back up your decision with statistical evidence. Do NOT just use the mean or median to explain your answer.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Looking at the data, I suspect the means are similar but the variability is much less in A than for B. The range is only 19 cases for A and 59 cases for B. Then one could use a better measure of variability like the sd.
The means are not only similar but equal.
The std dev for A is 6.38 cases and for B 25.51 cases. This is a large difference.
Means can be the same but the two samples widely different, and here they are. Statistically, were one not careful, a 2-sample t-test would show no difference, but the two sample t-test assumes that the variances of both of the samples are equal, and they are definitely not equal.
RELATED QUESTIONS
a request to solve a sum , to the respected expert teachers from me is just below... (answered by ewatrrr)
An accountant is to audit 24 accounts of a firm.16 of these are of highly valued... (answered by ewatrrr)
This is my question....
The TM Tennis Team played a total of 162 matches last season.... (answered by jim_thompson5910)
The manager of an apartment complex is also a tenant. He pays only three-fourths of the... (answered by josgarithmetic)
I have two questions that I am in dire need of answers to. I have been stumped for 3... (answered by scott8148)
1)A sales promoter offers a special price for a scanner with a printer. The probabilities (answered by stanbon)
The sport of bingbong involves two players. Each match consists of a number of rounds and (answered by robertb)
A few weeks into the deadly SARS (Severe Acute Respiratory Syndrome) epidemic in 2003,... (answered by Boreal)
Answer the following accordingly.
1.state the law of sines.
2.in which cases,can we use (answered by josgarithmetic)