A survey of 131 investment managers in Barron's Big Money poll revealed the following:
• 43% of managers classified themselves as bullish or very bullish on the stock market.
• The average expected return over the next 12 months for equities was 11.2%.
• 21% selected health care as the sector most likely to lead the market in the next 12 months.
• When asked to estimate how long it would take for technology and telecom stocks to resume sustainable growth, the managers' average response was 2.5 years.
a. Cite two descriptive statistics.
b. Make an inference about the population of all investment managers concerning the average return expected on equities over the next 12 months.
c. Make an inference about the length of time it will take for technology and telecom stocks to resume sustainable growth.