What percentage of U.S. brides keep their own names after marriage, as opposed to taking their husband's name or using some modication (such as hyphenation) of her name and her husband's?Researchers investigated this question by selecting a random sample of wedding announcements in the New York Times newspaper (Kopelman et al., 2009).They found that 21% of a sample of 550 brides selected between 2002 and 2005 kept their own names.

Identify (in words and as a number and using an appropriate symbol) the statistic in this study.

e. Based on how the sample was selected, do you have any concerns about generalizing the sample result to the population of all brides in the U.S. between 2002 and 2005?Explain.