The prices (in dollars) for a particular model of digital camera with 6.0 megapixels and an optical 3x zoom lens are shown below for 9 online retailers. Round sample statistics and final answers to one decimal place. 222  197  195  181  250  217  194  227  231Estimate the true mean price for this particular model with 90% confidence. Assume the variable is normally distributed. ***** Please show step by step (including how you get the standard deviation because i forgot how to get that part and i am stuck!****

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Asked Apr 11, 2019
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The prices (in dollars) for a particular model of digital camera with 6.0 megapixels and an optical 3x zoom lens are shown below for 9 online retailers. Round sample statistics and final answers to one decimal place. 

222  197  195  181  250  217  194  227  231

Estimate the true mean price for this particular model with 90% confidence. Assume the variable is normally distributed. 

***** Please show step by step (including how you get the standard deviation because i forgot how to get that part and i am stuck!****

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Expert Answer

Step 1

In this question, we have data and using that data we have to find the sample mean and confidence interval.

Step 2

Here we have found the mean and standard deviation of given data.&n...

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