1.9 International Communications Research (ICR)

conducted the 2004 National Spring Cleaning Survey for The Soap and Detergent Association. ICR questioned 1000 American male and female heads of household regarding their house cleaning attitudes.

The survey has a margin of error of plus or minus 5%.

a. What is the population?

b. How many people were polled?

c What information was obtained from each person?

d. Using the information given, estimate the number of surveyed adults who think cleaning under the couch is the most difficult cleaning job.

e. What do you think the “margin of error of plus or minus 5%” means?

f. How would you use the “margin of error” in estimating the percentage of all adults who think that Venetian blinds are the hardest to clean?

Transcribed Image Text:

THOSE HARD TO CLEAN PLACES Cleaning windows is rated the most difficult household task by more than one-third of adults. Wooden floors Don't know 5% 8% Venetian blinds Under couch 12% 35% Tops of shelves Behind the TV 16% 24% Data from Anne R. Carey and Gla Keressildes, USA TODAY: Source: Swiffer