Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 2, Problem 32CE
David Wise handles his own investment portfolio, and has done so for many years. Listed below is the holding time (recorded to the nearest whole year) between purchase and sale for his collection of 36 stocks.
- a. How many classes would you propose?
- b. What class interval would you suggest?
- c. What quantity would you use for the lower limit of the initial class?
- d. Using your responses to parts (a), (b), and (c), create a frequency distribution.
- e. Describe the shape of the frequency distribution.
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1.Income on Housing = 28%
2.Food = 15%
3.Clothing = 11%
4.Transportation = 15%
5.Education = 11%
6.Recreation = 7%
7.Miscellaneous = 7%
Total Expenditures(%) = 94%
6% is his savings which is $200 per month
Let x his monthly earnings
a. What are the H0 and HA?b.What is the P-Value? Round to 4 decimal places.c. Write a real world interpretation of this problem.
Use the applet available below to complete parts (a) through (c).
(a) How many classes are in the histogram for the Five-Year Rate of Return data when the "Starting point" is 8 and
the "Bin width" is 2?
(b) How many classes are in the histogram for the Five-Year Rate of Return data when the "Starting point" is 8 and
the "Bin width" is 4?
(c) How many classes are in the histogram for the Five-Year Rate of Return data when the "Starting point" is 8 and
the "Bin width" is 1?
Click here to view the applet.
(a) There are
(Type a whole number.)
classes.
(b) There are
(Type a whole number.)
classes.
(c) There are
(Type a whole number.)
classes.
Chapter 2 Solutions
Statistical Techniques in Business and Economics
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Ch. 2 - A set of data consists of 45 observations between...Ch. 2 - A set of data consists of 230 observations between...Ch. 2 - A set of data contains 53 observations. The...Ch. 2 - Wachesaw Manufacturing Inc. produced the following...Ch. 2 - The Quick Change Oil Company has a number of...Ch. 2 - The manager of the BiLo Supermarket in Mt....Ch. 2 - The food services division of Cedar River...Ch. 2 - The annual imports of a selected group of...Ch. 2 - Mollys Candle Shop has several retail stores in...Ch. 2 - The following chart shows the number of patients...Ch. 2 - The following frequency distribution reports the...Ch. 2 - Prob. 18ECh. 2 - A sample of the hourly wages of 15 employees at...Ch. 2 - The following cumulative frequency and the...Ch. 2 - The cumulative frequency and the cumulative...Ch. 2 - The frequency distribution representing the number...Ch. 2 - Prob. 22ECh. 2 - Describe the similarities and differences of...Ch. 2 - Describe the similarities and differences between...Ch. 2 - Alexandra Damonte will be building a new resort in...Ch. 2 - Prob. 26CECh. 2 - A data set consists of 83 observations. How many...Ch. 2 - A data set consists of 145 observations that range...Ch. 2 - The following is the number of minutes to commute...Ch. 2 - The following data give the weekly amounts spent...Ch. 2 - A social scientist is studying the use of iPods by...Ch. 2 - David Wise handles his own investment portfolio,...Ch. 2 - Prob. 33CECh. 2 - The monthly issues of the Journal of Finance are...Ch. 2 - The following histogram shows the scores on the...Ch. 2 - The following chart summarizes the selling price...Ch. 2 - A chain of sport shops catering to beginning...Ch. 2 - Prob. 38CECh. 2 - A recent survey showed that the typical American...Ch. 2 - Midland National Bank selected a sample of 40...Ch. 2 - Residents of the state of South Carolina earned a...Ch. 2 - A recent study of home technologies reported the...Ch. 2 - Merrill Lynch recently completed a study regarding...Ch. 2 - Prob. 44CECh. 2 - Refer to the following chart: a. What is the name...Ch. 2 - The following chart depicts the annual revenues,...Ch. 2 - Prob. 47CECh. 2 - Prob. 48CECh. 2 - One of the most popular candies in the United...Ch. 2 - The number of families who used the Minneapolis...Ch. 2 - Refer to the North Valley Real Estate data that...Ch. 2 - Prob. 52DACh. 2 - Refer to the Lincolnville School District bus...
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