The information about the American association of individual investors shows that the test statistic is -1.89.
<h3>How to calculate the test statistic?</h3>
From the complete information, it was stated that the survey results showed 33.2% bullish, 39.6% neutral, and 27.2% bearish and there were 300 members.
Therefore, the test statistic will be:
= 0.332 - 0.385 / (✓0.385 × ✓0.615 / ✓300)
= -1.89
In conclusion, the test statistic is -1.89.
Learn more about test statistics on:
brainly.com/question/462112