(a) Predict annual sales (one best number) for a broker who brings in 12 new clients in one year.
(b) With a 95% confidence level, what are the predicted low and high annual sales for a broker who brings in 12 new clients in one year?
(c) Based on all of the above analysis (Questions 10 - 16), should the predictions in (a) and (b) be used? That is, are they statistically valid predictions? Simply type 'yes' or 'no'.
(NEED ASAP) The managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales generated by the broker. For the last year, the managers sampled 16 brokers and determined the number of new clients they enrolled during that year and their sales amounts in millions of dollars for that year. This data is presented in the table that follows. In your answers, sales should be left as a decimal as in the data table. It is not necessary to multiply by one million dollars.
|
Broker
|
New Clients
|
Sales
|
|
1
|
27
|
5.32
|
|
2
|
11
|
3.44
|
|
3
|
42
|
7.96
|
|
4
|
33
|
6.62
|
|
5
|
15
|
4.06
|
|
6
|
15
|
3.16
|
|
7
|
25
|
4.9
|
|
8
|
36
|
6.84
|
|
9
|
28
|
5.8
|
|
10
|
30
|
5.84
|
|
11
|
17
|
3.56
|
|
12
|
22
|
4.58
|
|
13
|
18
|
3.7
|
|
14
|
24
|
5.34
|
|
15
|
35
|
6.9
|
|
16
|
40
|
7.56
|