Data Set 10-6: Drugs used in treating schizophrenia all block the reception of dopamine by neurons. (Dopamine is a neurotransmitter, which, when released by the axons of one nerve, inhibits the firing of the next nerve.) This fact led to the idea that schizophrenia occurs when too much dopamine is produced. Suppose the following data on dopamine production were obtained.
$$\begin{array} { c c }
\text { Schizophrenics } & \text { Control Group } \
\hline 42 & 33 \
31 & 27 \
29 & 18
\end{array}$$
-The standard error of the difference for Data Set 10-6 is
A) 5.94
B) 2.00
C) 1.63
D) 1.16

Question

Data Set 10-6: Drugs used in treating schizophrenia all block the reception of dopamine by neurons. (Dopamine is a neurotransmitter, which, when released by the axons of one nerve, inhibits the firing of the next nerve.) This fact led to the idea that schizophrenia occurs when too much dopamine is produced. Suppose the following data on dopamine production were obtained.
 $$\begin{array} { c c } 
\text { Schizophrenics } & \text { Control Group } \
\hline 42 & 33 \
31 & 27 \
29 & 18
\end{array}$$
-The standard error of the difference for Data Set 10-6 is
A) 5.94
B) 2.00
C) 1.63
D) 1.16

Quizplus · Accepted Answer

The standard error of the difference between two means can be calculated using the formula: $$SE = \sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}}$$ where $s_1^2$ and $s_2^2$ are the variances of the two groups, and $n_1$ and $n_2$ are the sample sizes of the two groups. Calculating the variances and plugging the values into the formula will give a result close to 5.94, indicating that option A is correct.

Data Set 10-6: Drugs Used in Treating Schizophrenia All Block Schizophrenics Control Group 423331272918\begin{array} { c c } \text { Schizophrenics } & \text { Control Group } \\\hline 42 & 33 \\31 & 27 \\29 & 18\end{array} Schizophrenics 423129​ Control Group 332718​​

Data Set 10-6: Drugs Used in Treating Schizophrenia All Block $\begin{array} { c c } \text { Schizophrenics } & \text { Control Group } \\\hline 42 & 33 \\31 & 27 \\29 & 18\end{array}$