STATISTICS F/BUSINESS+ECONOMICS-TEXT
13th Edition
ISBN: 9781305881884
Author: Anderson
Publisher: CENGAGE L
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Textbook Question
Chapter 16.6, Problem 27E
The following data show the daily closing prices (in dollars per share) for a stock.
| Date | Price ($) |
| Nov. 3 | 82.87 |
| Nov. 4 | 83.00 |
| Nov. 7 | 83.61 |
| Nov. 8 | 83.15 |
| Nov. 9 | 82.84 |
| Nov. 10 | 83.99 |
| Nov. 11 | 84.55 |
| Nov. 14 | 84.36 |
| Nov. 15 | 85.53 |
| Nov. 16 | 86.54 |
| Nov. 17 | 86.89 |
| Nov. 18 | 87.77 |
| Nov. 21 | 87.29 |
| Nov. 22 | 87.99 |
| Nov. 23 | 88.80 |
| Nov. 25 | 88.80 |
| Nov. 28 | 89.11 |
| Nov. 29 | 89.10 |
| Nov. 30 | 88.90 |
| Dec. 1 | 89.21 |
- a. Define the independent variable Period, where Period = 1 corresponds to the data for November 3, Period = 2 corresponds to the data for November 4, and so on. Develop the estimated regression equation that can be used to predict the closing price given the value of Period.
- b. At the .05 level of significance, test for any positive autocorrelation in the data.
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JOYFUL Fashion Company is reviewing the monthly sales in year 2021.The monthly sales (in millions) of each month
were as below:
Jan: $2.2 Feb: $2.5 Mar: $2.0 Apr: $2.8 May: $1.9
Jun: $0.9
Jul: $3.4
Aug: $3.7 Sep: $2.1
Oct: $2.5 Nov: $2.3
Dec: $4.6|
The JOYFUL Fashion Company will issue a Gold Membership to customers with accumulated spending in
January 2022 over 1% of 2021's average monthly sales and a Platinum Membership to customers with
accumulated spending in January 2022 over 1% of the 80th percentile of 2021's monthly sales.
(c) Mrs. Robinson has spent $27,450 in January 2022. Will she be qualified for the Gold Membership? Will she be
qualified for the Platinum Membership? Explain your answers.
(d) It is known that the average monthly sales from Jul 2020 to Dec 2020 were $1.9 millions. Find the average
monthly sales from July 2020 to Dec 2021.
(e) Are the JOYFUL Fashion Company sales increasing / decreasing? Explain your answer by comparing the
half-yearly average monthly sales.…
The table below shows the year open and year closing price of the S&P 500 Stock Index from 2005 to 2020:
Year
Year Open
Year Close
Annual Percent Change
2005
$ 1,202.08
$ 1,248.29
2006
$ 1,268.08
$ 1,418.30
2007
$ 1,416.60
$ 1,468.36
2008
$ 1,447.16
$ 903.25
2009
$ 931.80
$ 1,115.10
2010
$ 1,132.99
$ 1,257.64
2011
$ 1,271.87
$ 1,257.60
2012
$ 1,277.06
$ 1,426.19
2013
$ 1,462.42
$ 1,848.36
2014
$ 1,831.98
$ 2,058.90
2015
$ 2,058.20
$ 2,043.94
2016
$ 2,012.66
$ 2,238.83
2017
$ 2,257.83
$ 2,673.61
2018
$ 2,695.81
$ 2,506.85
2019
$ 2,510.03
$ 3,230.78
2020
$ 3,257.85
$ 3,756.07
Find the annual percent change for the S&P 500 from 2005 to 2020;
(Put those values in the table above)
Compute the mean,…
Using the data in the table to the right, calculate the return for
investing in the stock from January 1 to December 31. Prices
are after the dividend has been paid. (Click on the following
icon D in order to copy its contents into a spreadsheet.)
Date
Price
Dividend
$33.24
$32.98
$30.09
$30.44
$37.11
$43.75
Jan 1
Feb 5
$0.18
May 14
Aug 13
$0.19
$0.22
$0.21
Nov 12
Dec 31
.....
Return for the entire period is
%. (Round to two decimal places.)
Chapter 16 Solutions
STATISTICS F/BUSINESS+ECONOMICS-TEXT
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