Question
The National Retail Federation conducted a national randomly-selected survey of 8,526 consumers on September 1-9, 2009 asking households how much they plan to spend on
The National Retail Federation conducted a national randomly-selected survey of 8,526 consumers on September 1-9, 2009 asking households how much they plan to spend on Memorial Day. I would like to know if the average amount households planned to spend on Memorial Day is less than $57.
The survey found that the average amount that the respondents said they expect to spend on Memorial Day is $56.31 with a standard deviation of $30
use the theory-based applet find a 95% confidence interval for the average amount of money households planned to spend on Memorial Day.
Round the final answer to 2 decimal places.
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