The price per share of stock for a sample of 25 companies was recorded at the beginning of 2012 and then again at the end of the 1st quarter of 2012. How stocks perform during the 1st quarter is an indicator of what is ahead for the stock market and the economy. The sample data are provided in the Excel Online file below. Construct a spreadsheet to answer the following questions. Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak Open spreadsheet a. Let di denote the change in price per share for company i where d; = 1st quarter of 2012 price per share minus the beginning of 2012 price per share. Use the sample mean of these values to estimate the dollar amount a share of stock has changed during the 1st quarter $7.34 (to 2 decimals) b. What is the 95% confidence interval estimate of the population mean change in the price per share of stock during the first quarter? Interpret this result. Standard deviation (to 2 decimals): Confidence interval (to 2 decimals): ( The mean price per share has increase between Check My Work Reset Problem ) % and % over the three-month period (to 1 decimal).
The price per share of stock for a sample of 25 companies was recorded at the beginning of 2012 and then again at the end of the 1st quarter of 2012. How stocks perform during the 1st quarter is an indicator of what is ahead for the stock market and the economy. The sample data are provided in the Excel Online file below. Construct a spreadsheet to answer the following questions. Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak Open spreadsheet a. Let di denote the change in price per share for company i where d; = 1st quarter of 2012 price per share minus the beginning of 2012 price per share. Use the sample mean of these values to estimate the dollar amount a share of stock has changed during the 1st quarter $7.34 (to 2 decimals) b. What is the 95% confidence interval estimate of the population mean change in the price per share of stock during the first quarter? Interpret this result. Standard deviation (to 2 decimals): Confidence interval (to 2 decimals): ( The mean price per share has increase between Check My Work Reset Problem ) % and % over the three-month period (to 1 decimal).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
please provide CORRECT answers! Thank you.
Transcribed Image Text:File
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End of 1st
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26.23
40.71
55.60
60.12
68.16
109.58
31.61
13.85
46.31
22.77
33.03
22.25
53.01
47.38
69.01
40.43
72.42
41.47
33.86
76.81
69.56
89.63
25.25
30.36
109.61
Data
Draw
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Beginning of
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17.91
35.06
44.28
60.13
62.88
104.04
20.81
9.61
39.32
16.11
27.74
15.88
40.74
31.35
65.11
37.82
60.60
40.06
24.06
67.37
52.10
82.86
20.44
23.98
104.80
Page Layout
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Change in
Price (di)
Calculation Mode: Automatic Workbook Statistics
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Formulas
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Review
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The 95% confidence interval
C.I.Lower Limit (to 2 decimals)
C.I.Upper Limit (to 2 decimals)
ab
After reading these instructions delete all text in this shaded area.
Use the XLMiner Analysis ToolPak to conduct your analysis.
After deleting all text in this shaded area, set the output range in
the ToolPak to the top left cell of this area (F1).
Your analysis output should fit into this shaded area.
G
Mean Price, Beginning of Year (to 2 decimals)
Percentage Change in the Population Mean
Lower Percentage Change (to 1 decimal)
Upper Percentage Change (to 1 decimal)
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Formulas
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Transcribed Image Text:The price per share of stock for a sample of 25 companies was recorded at the beginning of 2012 and then again at the end of the 1st quarter of 2012. How stocks perform during the
1st quarter is an indicator of what is ahead for the stock market and the economy. The sample data are provided in the Excel Online file below. Construct a spreadsheet to answer the
following questions.
Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak
X
Open spreadsheet
a. Let
di denote the change in price per share for company i where
di
1st quarter of 2012 price per share minus the beginning of 2012 price per share. Use the sample mean of these values to estimate the dollar amount a share of stock has
changed during the 1st quarter
$ 7.34
(to 2 decimals)
b. What is the 95% confidence interval estimate of the population mean change in the price per share of stock during the first quarter? Interpret this result.
Standard deviation (to 2 decimals):
Confidence interval (to 2 decimals): (
=
The mean price per share has increase between
Check My Work
Reset Problem
)
% and
% over the three-month period (to 1 decimal).
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VIEWStep 4: Determine the 95% confidence interval estimate of the population mean change in price per share.
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