Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet a. What is the point estimate of the population mean amount adults spend on a Halloween costume (to 2 decimals)? $ b. What is the sample standard deviation (to 2 decimals)? $ c. Provide a 95% confidence interval estimate of the population standard deviation for the amount adults spend on a Halloween costume (to 2 decimals)? so≤ $

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Transcribed Image Text:Excel 5 D2 123458UH23 6 7 9 File 10 11 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 21 template - Saved A Dollars Spent 10 71 21 64 35 35 34 45 54 17 11 95 42 33 66 29 Home = Insert B Arial X ✓ fx Part a Mean Draw Part b Standard Deviation ✓ 10 Page Layout Part c Degrees of Freedom Data + с Lower Limit Critical Chi-square Upper Limit Critical Chi-square Calculation Mode: Automatic Workbook Statistics V The 95% confidence interval C.I.Lower Limit C.I.Upper Limit B Formulas V D Search (Option + Q) Data Review E View Formula ab Help F #N/A #N/A #N/A #N/A #N/A #N/A #N/A Number > G ←0 .00 .00 →.0 H ▬▬▬▬ 1 V J K Ev L Editing AP M Give Feedback to Microsoft Comments N T O 100% +
Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are contained in the
Excel Online file below. Construct a spreadsheet to answer the following questions.
X
Open spreadsheet
a. What is the point estimate of the population mean amount adults spend on a Halloween costume (to 2 decimals)?
$
b. What is the sample standard deviation (to 2 decimals)?
$
c. Provide a 95% confidence interval estimate of the population standard deviation for the amount adults spend on a Halloween costume (to 2 decimals)?
$
<o<$
Check My Work
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Transcribed Image Text:Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. X Open spreadsheet a. What is the point estimate of the population mean amount adults spend on a Halloween costume (to 2 decimals)? $ b. What is the sample standard deviation (to 2 decimals)? $ c. Provide a 95% confidence interval estimate of the population standard deviation for the amount adults spend on a Halloween costume (to 2 decimals)? $ <o<$ Check My Work Reset Problem
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