You have developed a xgBoost model to predict Responders to a marketing campaign The model gives the decile analyses shown below. What is the cumulative liftin the 3rd decile ?Decile# Customers# RespondersCumulative Lifttop5000700500045035000300450002009050005000707500045500025500012bottom50008CO

Answered: Image /qna-images/answer/afc01f16-c175-462e-b9b6-eedca8990ab8.jpg

Answered: You have developed a xgBoost model to…

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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T stat please An annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying data represent the ad length and ad scores from a recent championship. Complete parts (a) through (c). 30-Second Ads 60-Second Ads 48 27 40 39 47 65 59 58 60 53 40 23 36 53 54 24 39 38 47 61 a. Assuming that the population variances from the 30-second ads and the 60-second ads are equal, is there evidence of a difference in the mean score between the two types of ads? Use α=0.02. Let μ1 be the mean score for the 30-second ads and μ2 be the mean score for the 60-second ads. Determine the hypotheses. Choose the correct answer below. A. H0: μ1≥μ2 H1: μ1<μ2 B.…
ZOOM + 2. Researchers studying acid rain recorded the pH level for a sample of 26 water sources in Pennsylvania. The sorted list of the data (some values have been obscured), the histogram of the data, and some other statistics are below. Histogram of pH levels Sort (pH) Frequency 10 10- 4.12 4.12 ?? ?? 4.29 ?? 4.31 4.39 4.39 4.40 4.41 4.45 4.52 4.56 4.57 4.60 ?? ?? 4.73 ?? 5.08 5.29 5.51 5.62 5.67 5.78 Summary statistics: Col n Min Max Q1 pH Q3 26 4.12 5.78 4.31 4.82 a) Find the median pH level. Carefully show your work. b) Considering your answer to part a) and the histogram, which would be the best choice for the sample mean pH level (4.68, 4.56, or 4.00 units)? Explain. c) Find the Range of the pH levels. d) Find the IQR of the pH levels 1 pH 3. The following numbers are a sample of ten of my golf scores from 2020. In golf the “units" are technically called "strokes". Find my mean score and the standard deviation of my scores. 98, 94, 88, 90, 86, 92, 86, 85, 84, 87
APPLICATIONS 3.69 The following data give the speeds of 13 cars (in mph) measured by radar, traveling on I-84. 73 75 69 68 78 69 74 76 72 79 68 77 71 a. Find the values of the three quartiles and the interquartile range. b. Calculate the (approximate) value of the 35th percentile. c. Compute the percentile rank of 71. > Answer
Is College Major qualitative or quantitative? What type of quantitative/qualitative variable is it? Is Commuting Time qualitative or quantitative? What type of quantitative/qualitative variable is it? Create a table with the absolute and relative frequencies of College Major. Screenshot attached thank you
Using the data from the table Disease or illness less than $35,000 $35,000 - 49,999 $50,000 - 74,999 $75,000 - 99,999 $100,000 or more Coronary heart disease 8.1 6.5 6.3 5.3 4.9 Stroke 3.9 2.5 2.3 1.8 1.6 Emphysema 3.2 2.5 1.4 1.0 0.8 Chronic bronchitis 6.3 4.0 4.4 2.2 2.4 Diabetes 11.0 10.4 8.3 5.6 5.9 Ulcers 8.7 6.7 6.5 4.7 4.4 Kidney disease 3.0 1.9 1.3 0.9 0.9 Liver disease 2.0 1.6 1.0 0.6 0.7 Chronic arthritis 33.4 30.3 27.9 27.4 24.4 Hearing trouble 17.2 16.0 16.0 16.2 12.4 Vision trouble 12.7 9.8 7.5 5.7 6.6 No teeth 11.6 7.8 5.5 4.2 4.1 A) create a line graph plotting Annual family income on the x-axis and prevalence of disease or illness on the y-axis. Include all data points for each disease on the same chart ( i.e.? plot the prevalence for each disease or illness as it's own line on a single chart) B) do any of the chronic disease in the table appear to have a dose-response relationship to annual family income? Justify your…
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The data in the table below represents the percentage of a country's population aged 20 years or older whose age is x who do not have a high school diploma. Complete parts (a) through (c) below. Age, a Pecentage without a H. S. Diploma, P 20 30 40 50 60 70 13.1 11.5 10.5 13.5 22.3 29.8 (a) Using a graphing utility, draw a scatter diagram of the data treating age as the independent variable. What type of relation appears to exist between age and percentage of the population without a high school diploma? Which graph below is a scatter diagram of the data? A. В. OC. D. P 40- AP 40- 70- 70- a a P 20+ 0+ 20 20- 0+ 20 70 40 70 40 Use the graph to determine which sentence below best describes the relation between age and percentage of the population without a high school diploma. A. There appears to be a linear relation between age and percentage. B. There does not appear to be any relation between age and percentage. O C. There appears to be a quadratic relation between age and percentage.
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
Using bike weight to predict bike price what would be the response variable here?
How much would you expect systolic blood pressure to change if a person commits to reducing their cigarette consumption by 1 cigarette per day?
Please find test statistic and p value also thank you

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