Instruction 12 -Referring to Instruction 12 $S _ { b _ { 1 } }$

question 154

Short Answer

Instruction 12.28
The managers of a brokerage firm are interested in finding out if the number of new customers a broker brings into the firm affects the sales generated by the broker. They sample 12 brokers and determine the number of new customers they have enrolled in the last year and their sales amounts in thousands of dollars. These data are presented in the table that follows.
$$\begin{array} { | l | l | l | } \hline \text { Broker } & \text { Clients } & \text { 5les } \\\hline 1 & 27 & 52 \\\hline 2 & 11 & 37 \\\hline 3 & 42 & 64 \\\hline 4 & 33 & 55 \\\hline 5 & 15 & 29 \\\hline 6 & 15 & 34 \\\hline 7 & 25 & 58 \\\hline 8 & 36 & 59 \\\hline 9 & 28 & 44 \\\hline 10 & 30 & 48 \\\hline 11 & 17 & 31 \\\hline 12 & 22 & 38 \\\hline\end{array}$$
-Referring to Instruction 12.28,the managers of the brokerage firm wanted to test the hypothesis that the true slope was equal to 0.The denominator of the test statistic is $S _ { b _ { 1 } }$ .The value of $S _ { b _ { 1 } }$ in this sample is ____________.

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Definitions:

Behaviour Observation Scale

A systematic method used to assess and record the frequency and quality of behaviors in a specific context.

Subjective Evaluation

The assessment or appraisal of work, performance, or artistry based on personal feelings, tastes, or opinions rather than objective criteria.

Performance Tests

Evaluations designed to measure an individual's capabilities and achievements in specific areas.

Performance Appraisal Form

A document used by organizations to evaluate an employee's job performance over a specific period, often incorporating feedback and goal assessments.