ply provides the more consistent and21. How do grocery costs compare across the country? Using a market basket of 10 items in-cluding meat, milk, bread, eggs, coffee, potatoes, cereal, and orange juice, Where to Retiremagazine calculated the cost of the market basket in six cities and in six retirement areasacross the country (Where to Retire, November/December 2003). The data with marketbasket cost to the nearest dollar are as follows:CityCostRetirement AreaCostBuffalo, NYDes Moines, IAHartford, CTLos Angeles, CAMiami, FLPittsburgh, PA$33273238Biloxi-Gulfport, MSAsheville, NCFlagstaff, AZHilton Head, SCFort Myers, FLSanta Fe, NM$2932323434313632Compute the mean, variance, and standard deviation for the sample of cities and thesample of retirement areas.b.a.What observations can be made based on the two samples?

Mean: For a set of n observations, x1, x2, ... , xn, mean is given by, Variance: For a set of n…

Answered: 21. How do grocery costs compare across…

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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Example 5 The highlights of the Railway budget for 1983-84 are as follows. The actual gross traffic receipts for 1981-82 was Rs. 3,538.24 crores. The Budget Estimates for 1982-83 in regard to Gross traffic receipts was Rs. 4,171.8 crores and the revised Budget Estimate for 1982-83 for the above item is Rs. 4,375.79 crores respectively. Whereas the budget estimates for 1983-84 for Gross traffic receipts is Rs. 5,343.63 crores, the actual total working expenses and the net railway revenue for 1981-82 were Rs. 3,182.05 crores and Rs. 403.1 crores respectively. The Budget Estimates and Revised Budget Estimates for 1982-83 in respect of total working expenses are Rs. 3,700.90 crores and Rs. 3,892.28 crores respectively. Whereas the corresponding estimates for 1982-83 in respect of net-railway revenue are Rs. 510.91 crores and Rs. 533.4 crores respectively, the estimated budget on total working expenses and net railway revenue for 1983-84 exceed the actuals for 1981-82 by Rs. 1,338.72 crores…
An insurance company offers four different deductible levels—none, low, medium, and high—for its homeowner's policyholders and three different levels—low, medium, and high—for its automobile policyholders. The accompanying table gives proportions for the various categories of policyholders who have both types of insurance. For example, the proportion of individuals with both low homeowner's deductible and low auto deductible is 0.07 (7% of all such individuals). Homeowner's Auto N L M H L 0.04 0.07 0.05 0.01 M 0.07 0.08 0.20 0.13 H 0.02 0.03 0.15 0.15 Suppose an individual having both types of policies is randomly selected. (d) Based on your answer in part (c), what is the probability that the two categories are different?(e) What is the probability that the individual has at least one low deductible level?(f) Using the answer in part (e), what is the probability that neither deductible level is low?
An insurance company offers four different deductible levels-none, low, medium, and high-for its homeowner's policyholders and three different levels-low, medium, and high-for its automobile policyholders. The accompanying table gives proportions for the various categories of policyholders who have both types of insurance. For example, the proportion of individuals with both low homeowner's deductible and low auto deductible is 0.07 (7% of all such individuals). Auto L M H Homeowner's NLMH Suppose an individual having both types of policies is randomly selected. (a) What is the probability that the individual has a medium auto deductible and a high homeowner's deductible? 0.04 0.07 0.05 0.02 0.07 0.09 0.20 0.11 0.02 0.03 0.15 0.15 (b) What is the probability that the individual has a low auto deductible? A low homeowner's deductible? auto deductible homeowner's deductible (c) What is the probability that the individual is in the same category for both auto and homeowner's deductibles?…
The table to the right represents the annual percentage of smartphones sold in a certain region in 2011, 2012, and 2013 (projected). a. What conclusions can you reach about the market for smartphones in 2011, 2012, and 2013? b. What differences are there in the market for smartphones in 2011, 2012, and 2013? a. Select all that apply. A. Type 6 had the smallest or close to the smallest percentage of smartphones sold in all three years. B. Type 3 had the second largest percentage of smartphones sold in all three years. C. Type 1 had the largest percentage of smartphones sold in all three years. D. Type 5 had the smallest or close to the smallest percentage of smartphones sold in all three years. E. Type 2 had the second largest percentage of smartphones sold in all three years. Туре Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 2011 44% 21% 21% 10% 1% 3% 2012 69% 16% 4% 6% 3% 2% 2013 63% 17% 1% 3% 13% 3%
12.. any, srould be adjusted or removed. Menu Number Menu Menu Item Sold Mix% Price ($) Pasta Steak Salmo n Chicke n Caesar 1 Total 450 525 475 400 550 Complete the following chart and comment on which menu items, if Avg Menu Mix% = 12.00 25.50 18.95 Food Cost CM ($) ($) 3.88 9.00 13.78 8.50 14.75 6.58 1.86 Item Gross CM Margin Category Avg CM= MM% Class Category
14. At a BIG TEN College, two outstanding athletes, a 400-meter sprinter and a High Jumper, break their college's record in their respective events. Matthew, the college sports statistician, decides to determine which record-breaking result was more outstanding relative to the athlete's event. To determine who performed the more outstanding record breaking feat relative to their respective event, Matthew collected the best performances for each respective event within the BIG TEN Colleges for the year. The following table contains the information. Record Mean Standard Deviation Athlete | 400-Meter Sprinter 43.61 seconds 44.35 seconds 0.41 seconds High Jumper 2.44 meters 2.39 meters 0.04 meters a) Based on the table information, which athlete had the more outstanding record relative to their respective event? b) State the statistical result(s) you computed to support your answer!
39. Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: # of Courses Frequency Frequency 1 2 $ 30 Relative Frequency Relative Frequency Cumulative Relative Frequency 0.6 Table 1.13 Part-time Student Course Loads 151 Fill in the blanks in Table 1.13. b. What percent of students take exactly two courses? C. What percent of students take one or two courses? 4
How many outliers would be considered in this data? Something is wrong with my lower and upper formulas City Median Household Income Morgantown, WV $ 38,060 Fayetteville, AR $ 40,835 Wooster, OH $ 43,054 max $ 138,192.00 =MAX(B:B) Council Bluffs, IA $ 46,844 min $ 38,060.00 =MIN(B:B) Bossier City, LA $ 47,051 mean $ 72,342.94 =AVERAGE(B:B) St. Augustine, FL $ 47,748 median $ 66,743.00 =MEDIAN(B:B) Rapid City, SD $ 47,788 range $ 100,132.00 =E4-E5 Bozeman, MT $ 49,303 std deviation $ 23,711.80 =STDEV.S(B:B) Sparks, NV $ 54,230 first quartile $…
Consider the following Five-Number Summary for a data set: 45.2 56.5 80.7 91.3 105.9 Calculate the value below which a number in the data set is considered a low outlier. Enter your answer rounded to 1 decimal.
18. FILE DOW. The accompanying table shows a portion of the 30 companies that comprise the Dow Jones Industrial Average (DJIA). For each company, the data set lists the year that it joined the DJIA, its industry, and its stock price (in $) as of February 15, 2019. Company 3M (MMM) American Express (AXP) : Year 1976 1982 ⠀ 2018 Industry Health Care Finance ⠀ Health Care Price 208.9 107.4 ⠀ 73.43 Walgreen (WBA) a. What is the measurement scale of the Industry variable? b. What is the measurement scale of the Year variable? What are the strengths of this type of measurement scale? What are its weaknesses? c. What is the measurement scale of the Price variable? What are the strengths of this type of measurement scale?
1. Fill in the blanks for each of the statements below. а. A survey of 1000 U.S. adults found that 40% think the internet is the best way to get news and information. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the 40% a parameter or statistic, and why? b. A survey of the 55 law firms in a local city found that the average hourly billing rate is $425. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the $425 a parameter or statistic, and why?.
C8. According to the Pew Research Center (2015), recent immigrants are better educated than earlier immigrants to the United States. The change was attributed to the availability of better education in each region or country of origin. The percentage of immigrants 25 years of age and older who completed at least high school is reported in this table for 1970 to 2013. Write a statement describing the change over time in the percentage who completed at least a high school degree. 1970 1980 1990 2000 2013 Mexico 14 17 26 30 48 Other Central/South America 57 53 60 66 Asia 75 72 75 82 84 48 68 81 87 95 Europe 36 48 52 58 72 Caribbean 81 91 88 85 85 Africa Source: Pew Research Center, Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065, 2015. Retrieved from https://www.pewresearch.org/hispanic/2015/09/28/modern- immigration-wave-brings-59-million-to-u-s-driving-population-growth-and-change-through-2065/ 52

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