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- (3.7) #2The following chart shows "living wage" jobs in Rochester per 1000 working age adults over a 5 year period. Year 1997 1998 1999 2000 2001 Jobs 630 680 715 745 770 What is the average rate of change in the number of living wage jobs from 1997 to 1999?--------- Jobs/YearWhat is the average rate of change in the number of living wage jobs from 1999 to 2001?---------- Jobs/YearThe following chart gives the average monthly high and low temperatures in degrees Fahrenheit for Chillyopolis. What is the average low temperature in Chillyopolis during February, March, and April? Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. 44 Nov. Dec. High -13 - 7 5 15 26 60 54 41 20 2 - 6 Low - 30 - 21 - 9 - 3 14 37 45 47 35 15 - 9 15 ..... The average low temperature in Chillyopolis during February, March, and April is °F.
- The following chart shows "living wage" jobs in Rochester per 1000 working age adults over a 5 year period. Year 1997 1998 1999 2000 2001 Jobs 640 680 710 725 735 What is the average rate of change in the number of living wage jobs from 1997 to 1999? Jobs/Year What is the average rate of change in the number of living wage jobs from 1999 to 2001? Jobs/YearGiven the data set [0.07, -0.01, 0.10,-0.05, 0.007, 0.005], what is the result from the lag differencing once? . [0.12, -0.017, 0.095, 0.001] . [0.07, -0.001, 0, 0, 0, 0.012] . [0.12, -0.017, 0.095] . [0.12, 0, 0, -0.017]The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in F) for that month. The past year's usage and temperatures are in the following table: Usage/ Month Temp. 1000 Month 21 185.79 July. 24 214.47 Aug. 32 288.03 Sept. 47 424.84 Oct. 50 454.58 Nov. 59 539.03 Dec. Jan. Feb. Mar. Apr. May June Temp. 68 74 62 50 41 30 Identify which are the independent and dependent variables. Usage/ 1000 621.55 675.06 562.03 452.93 369.95 273.98
- The following table is a selection of average prices for a gallon of gas in the United States. Year Gas Price Index Value 2001 [A] 2003 [B] 2004 2018 [A] = Build an index from these values, using 2003 as the base year. Round each index value to the nearest tenth. [B] = = [C] = $1.42 $1.56 $1.85 $2.72 [D] = [C] [D]Sheena obtains cash from an ATM machine. She suspects that the rate at which she spends the cash is affected by the amount of cash she withdrew at her previous visit to an ATM. To investigate this she deliberately varies the amount she withdraws. She records for her each visit to an ATM, the amount "x"(in $) withdrawn and the number of hours "y" until her next visit to an ATM. Withdrawal 1 2 3 4 5 6 X y 789 10 40 10 100 110 120 150 2090 80 130 56 62 195 33094 27048 196214286 Discuss in detail the step-wise procedure and determine Karl Pearson's coefficient of correlation.The following chart shows "living wage" jobs in Rochester per 1000 working age adults over a 5 year period. Year 1997 1998 1999 2000 2001 Jobs 625 680 730 765 795 What is the average rate of change in the number of living wage jobs from 1997 to 1999? Jobs/Year What is the average rate of change in the number of living wage jobs from 1999 to 2001? E Jobs/Year
- The following chart shows "living wage" jobs in Tucson per 1000 working age adults over a 5 year period. Year 2007 2008 2009 2010 2011 Jobs 675 720 760 795 820 What is the average rate of change in the number of living wage jobs from 2007 to 2009? Jobs/Year What is the average rate of change in the number of living wage jobs from 2009 to 2011? Jobs/YearSheena obtains cash from an ATM machine. She suspects that the rate at which she spends the cash is affected by the amount of cash she withdrew at her previous visit to an ATM. To investigate this she deliberately varies the amount she withdraws. She records for her each visit to an ATM, the amount "x"(in $) withdrawn and the number of hours "y" until her next visit to an ATM. Withdrawal 1 2 3 4 5 6 X y 7 8 9 10 40 10 100 110 120 150 2090 80 130 5662 195 33094 27048 196214286 Observe the correlation coefficient value obtained, and comment on the strength of the relationship between the variables.The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in F) for that month. The past year’s usage and temperatures are in the following table: Month Temp. Usage/1000 Month Temp. Usage/1000 Jan. 21 185.79 July. 68 621.55 Feb. 24 214.47 Aug. 74 675.06 Mar. 32 288.03 Sept. 62 562.03 Apr. 47 424.84 Oct. 50 452.93 May 50 454.58 Nov. 41 369.95 June 59 539.03 Dec. 30 273.93 Test for significance of regression using α=0.01 (Use ANOVA). Calculate the r2 of the model. Find a 99% CI for .
