The table showing the stock price changes for a sample of 12 companies on a day is contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Compute the sample variance for the daily price change (to 4 decimals). b. Compute the sample standard deviation for the price change (to 4 decimals). c. Provide 95% confidence interval estimates of the population variance (to 4 decimals). so²s d. Provide 95% confidence interval estimates of the population standard deviation (to 4 decimals). sos
The table showing the stock price changes for a sample of 12 companies on a day is contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Compute the sample variance for the daily price change (to 4 decimals). b. Compute the sample standard deviation for the price change (to 4 decimals). c. Provide 95% confidence interval estimates of the population variance (to 4 decimals). so²s d. Provide 95% confidence interval estimates of the population standard deviation (to 4 decimals). sos
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Company
Aflac
Bank of Am.
Cablevision
Diageo
Fluor Cp
Goodrich
John.&John.
Loews Cp
Nokia
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11 SmpraEngy
12 Sunoco
13 Tyson Food
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Price
Change ($)
0.80
1.47
-0.05
0.91
0.41
0.22
1.33
0.98
2.35
0.53
0.28
0.10
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Formulas
Part a
Variance (to 4 decimals)
Part c
Degrees of Freedom
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Part b
Standard Deviation (to 4 decimals)
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Data
Left-Tailed Probability (to 4 decimals)
Right-Tailed Probability (to 4 decimals)
Review
The 95% Confidence Interval of the Population Variance
C.I.Lower Limit (to 4 decimals)
C.I.Upper Limit (to 4 decimals)
The 95% Confidence Interval of the Standard Deviation
C.I.Lower Limit (to 4 decimals)
C.I.Upper Limit (to 4 decimals)
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Transcribed Image Text:The table showing the stock price changes for a sample of 12 companies on a day is contained in the Excel Online file below. Construct a spreadsheet to answer the following
questions.
X
Open spreadsheet
a. Compute the sample variance for the daily price change (to 4 decimals).
b. Compute the sample standard deviation for the price change (to 4 decimals).
c. Provide 95% confidence interval estimates of the population variance (to 4 decimals).
so²s
d. Provide 95% confidence interval estimates of the population standard deviation (to 4 decimals).
sos
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