THIS QUESTION CONTAINS MULTIPLE PARTS – PLEASE ATTEMPT ALL PARTS.

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THIS QUESTION CONTAINS MULTIPLE PARTS – PLEASE ATTEMPT ALL
PARTS.

This Question Contains Multiple Parts Please Attempt All Parts 1 (478.77 KiB) Viewed 27 times

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Here are two sets of bivariate data with the same response variable. The first contains the variables x & y. The second contains the variables w&y х у W 38.8 48.9 87.3 40.4 12.4 -2.3 71.2 -13.7 30.9 49 65.8 55.4 у 50.4 98.8 74.7 24.4 21.6 69.1 48 54.2 52 39.6 131.3 91.8 38.4 63.3 70.5 67.8 32.6 23.4 47.9 34.6 51.8 60.4 56.7 43 26.6 6.7 57.5 34.6 60.5 3.9 32.8 23.8 64.2 50 22.6 105 -2.3 18.2 52.7 38.6 -4.5 36.4 39.9 20.8 40.6 -29.6 -0.9 31.7 32.2 61.6 79.3 70.3 86.3 63.4 31.4 41 43.7 16.6 58.5 37 54.5 73.6 -14.4 23.9 68.6 30 44.4 15.8 Which explanatory variable has a stronger relationship with the response variable y? O The first variable (x) has a stronger relationship with the response variable y. O The second variable (w) has a stronger relationship with the response variable y. What is the r value of the strongest relationship? Round to four decimal places.

You generate a scatter plot using Excel. You then have Excel plot the trend line and report the equation and the r2 value. The regression equation is reported as 25.16x + 89.29 and the p2 0.5329. Y = What is the correlation coefficient for this data set? r=

A data set contains information on the grams of fat and number of calories in 25 different fast foods. The correlation coefficient between fat content and calories is determined to be 0.18. Calculate the p-value for the two-tailed test of significance. Round your answer to four decimal places

Linear Regression Application, Interpolation and Extrapolation Use the data and story to answer the following questions The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 2 11.8 8.1 7.2 3.7 2.9 2.3 2.6 0.5 y 13.9 10.9 10.5 7.5 6.8 5.7 6.2 4.4 X = thousands of automatic weapons y = murders per 100,000 residents Use your calculator to determine the equation of the regression line. (Round to 2 decimal places) Determine the regression equation in y = bo + bx(x) form and write it below. A) How many murders per 100,000 residents can be expected in a state with 10.1 thousand automatic weapons? Answer = Round to 4 decimal places. B) How many murders per 100,000 residents can be expected in a state with 3.4 thousand automatic weapons? Answer = Round to 4 decimal places.

X у 51.52 4 л 5 40.49 6 7 41.56 46.53 39.1 8 9 37.57 10 32.84 11 32.11 12 32.28 29.45 13 14 18.72 12.59 15 16 16.26 17 6.33 18 9.5 Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Using a two-tailed test with a 0.05 significance level, what is our p-value? Round your answer to four decimal places does the data show a significant (linear) correlation between X and Y? Yes, significant correlation O No