32. David Wise handles his own investment portfolio, and has done so for many years. Listedbelow is the holding time (recorded to the nearest whole year) between purchase andsale for his collection of stocks. df8111198114851471211 9 7915 88 12 5 9 8 5910113 9 8a. 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. Identify the appearance of the frequency distribution.CO CO

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Answered: 32. David Wise handles his own…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Month: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Security Company 1.1 1.1 1.3 1.3 1.1 1.1 1.7 1.7 1.2 1.2 1.6 1.6 1.2 1.2 1.2 1.2 1.5 1.5 Other Company 1.6 1.6 2.3 2.3 2.2 2.2 1.5 1.5 2.2 2.2 2.1 2.1 2.3 2.3 1.5 1.5 1.5 1.5 Do the limited data listed here show evidence of stealing by the securitycompany's employees – why or why not?
You would like to estimate the variance of sick days at a Fortune 500 company. You randomly select 15 employees and record how many sick days they have used in the past year and you get a sample standard deviation of 1.2. Provide a 95% confidence interval estimate of the population variance.
Quarterly Glass Container Demand Year 1990 1991 1992 First Qtr. 17,446. 17,748. 17,595. Second Qtr. 17,785. 19,360. 18,338. Third Qtr. 18,971. Fourth Qtr. 19140. 17,802. 19,413. 18,315. 18,083. Question: Quarterly sales (in thousands of units) of a product over the last two years have been 26, 29, 30, 27, 28, 32, 33, and 30. Plot the data and forecast for the next period using Winter's Seasonal Model. Now, assume sales for the ninth quarter turned out to be 32. Update your parameter estimates and forecast sales for period 10.
Can you answer the question in the picture, please?
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 25 16 pivuuvilly | |- (Round to three decimal places as needed.) c. What do the preceding results suggest? Kept the Money D 12 30 LEED OA. A student given four quarters is more likely to have spent the money than a student given a $1 bill. B. A student given four quarters is more likely to have kept the money than a student given a $1 bill. C. A student given four quarters is more likely to have kept the money. OD. A student given four quarters is more likely to have spent the money.
To boost holiday sales, Ginsberg jewelry store is advertising the following promotion: “If more than five inches of snow fall in the first three days of the year (January 1 through January 3), all purchases made between Thanksgiving and Christmas are free!” Based on historical sales records as well as experience with past promotions, the store manager believes that the total holiday sales between Thanksgiving and Christmas could range anywhere between $200,000 and $400,000 but is unsure of anything more specific. Ginsberg has collected data on snowfall from December 16 to January 18 for the past several winters in the file Ginsberg. Construct a simulation model to assess potential refund amounts so that Ginsberg can evaluate the option of purchasing an insurance policy to cover potential losses. What is the probability that Ginsberg will have to refund sales? What is the average refund? Why is this a poor measure to use to assess risk? In the cases when snowfall exceeds 5…
Suppose that Melanie is a researcher who wishes to estimate the mean birthweight of full-term babies in her hospital. What is the minimum number of babies should she sample if she wishes to be at least 90% confident that the mean birthweight of the sample is within 225 grams of the the mean birthweight of all babies? Assume that the distribution of birthweights at her hospital is normal with a standard deviation of 600 g.
Question 5 of 10 The Tonowing spin back-to-back ster-and-ical plot shows are morenity insurance premiums paid by a sample of 62 students based on their location (23 from the South and 39 from the North) in the same city. Note that each leaf entry has two digits. South 79 78 74 69 67 54 42 41 36 33 20 13 07 94 90 72 68 20 17 84 84 48 07 1 NN 2 3 CO 3 4 4 in 5 North 02 05 10 18 22 24 28 36 51 55 60 66 72 73 81 85 89 92 15 15 16 18 28 29 44 69 76 80 90 96 10 27 32 43 55 76 97 24 45 SUBMIT QUESTION Key: 07 | 2 | 02 means $207 monthly insurance premium for a student in the South and $202 for a student in the North SAVE PROGRESS All folders are up to date. SUBMIT Connected to: Microsoft Exchange B

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