# Question: The American Association of Individual Investors AAII polls its subscribers

The American Association of Individual Investors (AAII) polls its subscribers on a weekly basis to determine the number who are bullish, bearish, or neutral on the short-term prospects for the stock market. Their findings for the week ending March 2, 2006, are consistent with the following sample results (AAII website, March 7, 2006).

Bullish....... 409

Neutral ..... 299

Bearish ..... 291

Develop a point estimate of the following population parameters.

a. The proportion of all AAII subscribers who are bullish on the stock market.

b. The proportion of all AAII subscribers who are neutral on the stock market.

c. The proportion of all AAII subscribers who are bearish on the stock market.

Bullish....... 409

Neutral ..... 299

Bearish ..... 291

Develop a point estimate of the following population parameters.

a. The proportion of all AAII subscribers who are bullish on the stock market.

b. The proportion of all AAII subscribers who are neutral on the stock market.

c. The proportion of all AAII subscribers who are bearish on the stock market.

## Answer to relevant Questions

A population has a mean of 200 and a standard deviation of 50.Asimple random sample of size 100 will be taken and the sample mean will be used to estimate the population mean. a. What is the expected value of x-bar? b. What ...The average score for male golfers is 95 and the average score for female golfers is 106 (Golf Digest, April 2006). Use these values as the population means for men and women and assume that the population standard deviation ...The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assume the population standard deviation for weekly ...Refer to the Scheer Industries example in Section 8.2. Use 6.84 days as a planning value for the population standard deviation. a. Assuming 95% confidence, what sample size would be required to obtain a margin of error of ...Many stock market observers say that when the P/E ratio for stocks gets over 20 the market is overvalued. The P/E ratio is the stock price divided by the most recent 12 months of earnings. Suppose you are interested in ...Post your question