International Communications Research (ICR) conducted the 2004 National Spring Cleaning Survey for the Soap and Detergent Association. ICR questioned 1000 American male and female head 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?
Those hard to clean places
Cleaning windows is rated the most difficult household task by more than one-third of adults.
Behind the TV 24%
Don't know 8%
Tops of shelves 16%
Under couch 12%
Venetian blinds 35%
Wooden floors 5%
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?