The prices (in dollars) for a particular model of digital camera with 6 megapixels and an optical 3X zoom lens are shown below for 9 online retailers. Round sample statistics and final answers to at...

The prices (in dollars) for a particular model of digital camera with
6

megapixels and an optical

3X

zoom lens are shown below for

9

online retailers. Round sample statistics and final answers to at least one decimal place.

Estimate the true mean price for this particular model with

80%
 confidence. Assume the variable is normally distributed.