According to a 2017 Gallup survey, the percentage of individuals in the United States who are invested
Question:
According to a 2017 Gallup survey, the percentage of individuals in the United States who are invested in the stock market by age is as shown in the following table (Gallup website).?
Suppose Gallup wishes to complete a follow-up survey to find out more about the specific type of stocks people in the United States are purchasing.?
a. How many 18 to 29 year olds must be sampled to find at least 50 who invest in the stock market??
b. How many people 65 years of age and older must be sampled to find at least 50 who invest in the stock market??
c. If 1000 individuals are randomly sampled, what is the expected number of 18 to 29 year olds who invest in the stock market in this sample? What is the standard deviation of the number of 18 to 29 year olds who invest in the stock market??
d. If 1000 individuals are randomly sampled, what is the expected number of those 65 and older who invest in the stock market in this sample? What is the standard deviation of the number of those 65 years of age and older who invest in the stock market?
StocksStocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...
Step by Step Answer:
Statistics For Business & Economics
ISBN: 9781337901062
14th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran