Refer to Kimberly-Clark Corporation's survey of 250 people who kept a count of their use of Kleenex tissues in diaries. We want to test the claim made by marketing experts that μ = 60 is the average number of tissues used by people with colds against our belief that the population mean is smaller than 60 tissues. We will select a = 0.05 as the level of significance for the test. The survey results for the 250 sampled Kleenex users are in the tissues.txt data file. Data are available at tissues.txt Using R, carry out the appropriate hypothesis test for μ and provide the numerical value of the test statistic. Round your final answer to four decimal places.

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The table describes the height of a weather balloon, in meters, minutes after its launch. Time (minutes) Height (meters) 0 60 1 68.2 2 74.3 3 80.9 4 89.7 8 128.5 Select which equation best models the data. O O O O y = 8.52 +58 y = 8.2x + 60 y = 11.4x +57 y = 11.8x + 54

Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as y = 30.42x + 81.82 and the r = 0.9. What percentage of the variation in y can be explained by the variation in the values of x? r2 = % (Report exact answer, and do not enter the % sign)

Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as y = 85.15x + 76.68 and the r = 0.19. What percentage of the variation in y can be explained by the variation in the values of x? % (Report exact answer, and do not enter the % sign) r² =

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Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported asy=−71.12x+92.48y=-71.12x+92.48and the r=−0.571r=-0.571.What proportion of the variation in y can be explained by the variation in the values of x?r² = %Report answer as a percentage accurate to one decimal place.

Using the data in the Excel spreadsheet "auto.xlsx", estimate a regression to answer the following question. A 1 inch increase in LENGTH corresponds to a _________________ increase in MPG (miles per gallon). Use negative values if it results in a decreased price. Round your answers to two decimals. make price mpg rep78 headroom trunk weight length turn displacement gear_ratio foreign AMC Concord 4,099 22 3 3 11 2,930 186 40 121 3.58 Domestic AMC Pacer 4,749 17 3 3 11 3,350 173 40 258 2.53 Domestic AMC Spirit 3,799 22   3 12 2,640 168 35 121 3.08 Domestic Buick Century 4,816 20 3 5 16 3,250 196 40 196 2.93 Domestic Buick Electra 7,827 15 4 4 20 4,080 222 43 350 2.41 Domestic Buick LeSabre 5,788 18 3 4 21 3,670 218 43 231 2.73 Domestic Buick Opel 4,453 26   3 10 2,230 170 34 304 2.87 Domestic Buick Regal 5,189 20 3 2 16 3,280 200 42 196 2.93 Domestic Buick Riviera 10,372 16 3 4 17 3,880 207 43 231 2.93 Domestic Buick Skylark 4,082 19 3 4 13 3,400 200 42 231…

[STATISTICS] How do you solve this? Data set: https://docs.google.com/document/d/18i0t_5Epc5KbGW5X659fLQID0zEOSIZIFMOIgHqEuos/edit?usp=sharing

Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported asy=−62.75x+42.07y=-62.75x+42.07and the r=−0.022r=-0.022.What proportion of the variation in y can be explained by the variation in the values of x?r² = %Report answer as a percentage accurate to one decimal place.