Why is minimizing or eliminating biases is more important than precision
Q: In an agricultural experiment, the effects of two fertilizers on the production of limes were…
A: Obtain the 99% confidence interval for the difference between two population means. The 99%…
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A: Given Data
Q: How much natural gas can homeowners expect to use per month if they install 6 inches of insulation…
A: Given Regression Equation : Y^ = 167.66 − 3.61x1 − 2.31x2 x1 = Thickness of Insulation (inches)x2 =…
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Q: If the total sum of squares is 6021, the residual sum of squares is 200. What is the value of r2?
A: The provided information is Residual sum of squareSSres=200Total sum of squareSStotal=6021
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A: (a) The following procedure is used to find out the least squares regression model for predicting…
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A: Taylor expansion of ex about c is =1+(x-c)+(x-c)2/2+(x-c)3/3!+.... So Taylor expansion about c=0 is…
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A: A research problem may vary according to projects. Ways to deal with it also may change. But some…
Q: if it was X-fask and Y-PSm t it 2.
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Q: How does expressed symbolically the interaction sum of squares?
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Q: What does The “Objective Coefficient” column provide?
A: Let OC denote Objective Coefficient.
Q: Explain the term sum of squares error?
A:
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Q: The following data was collected to explore how the number of square feet in a house, the number of…
A: The data shows the number of square feet in a house, the number of bedrooms, and the age of the…
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Q: Why is the discriminant useful?
A: To explain about discriminant
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A: Introduction - quantitative research- It is the process if collecting and analyzing numerical data.…
Q: How can two variables be displayed in a scattergram?
A: A scatterplot is a type of display of data that shows the relationship between two numerical…
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Q: What combination of factors will produce the smallest value for the standard error?
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A: Binomial distribution:the binomial distribution is the discrete probability distribution that gives…
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A: Given that avarage value of z and 5z is 30.
Q: ou apply it? why do you apply it?
A: Correction Factor: This factor is applied when there is a change or it is deviating from the…
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Q: Explain Variable Step Size Methods?
A: In this question, we have to explain variable step size methods.
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A: List of formulae : Sum of squares of X : SSx = ∑x2-∑x2n Sum of squares of Y : SSy = ∑y2-∑y2n Sum…
Q: Several states have argued that the 65-mph speed limit has no justification and have refused to…
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A: Solution: 6. The dot plot for the difference in the number of goals scored in each game is given.
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- What is difference between positively or Negatively Skewed?Xenical is used to treat obesity in people with risk factors such as diabetes, high blood pressure, and high cholesterol or triglycerides. Xenical works in the intestines, where it blocks some of the fat a person eats from being absorbed. A standard prescription of Xenical is given in 110-milligram (mg) capsules. Although the capsule weights can vary somewhat from 110 mg and also from each other, keeping the variation small is important for various medical reasons. A sample of 26 Xenical capsules had the weight shown in the table below: 109.9 110.1 109.9 109.7 110.1 109.7 110.2 110.1 110 110 110.2 110 109.9 110.1 109.9 110.1 109.9 109.9 109.9 110.1 110 109.9 109.9 110 110.1 110.3 The mean of the data set is 110; the sample standard deviation is 0.143. Assuming that the population is normal, construct a 95% confidence interval for the variance of all Xenical capsule weights. i. Procedure: Select an answer ii. Assumptions: (select everything that applies) Population standard deviation is…This is the question im stuggling with To study peanut allergies in children, 320 babies who were at high risk for developing peanut allergies were given peanuts. 3.2% of these babies developed peanut allergies. How many babies in the study developed peanut allergies? This is what i did: i cross multiply x with 100 and 3.2 with 320 then divided both sides by 100 to get x=10.24. I dont think its right because to me it doesnt make any sense my question is where did i go wrong? How many babies did not develop peanut allergies?
- A group of researchers measured how funny people rated a cartoon when they were in one of two groups: holding a pen in their teeth (forcing them to smile) or holding a pen in their lips (forcing them to frown). For this study, identify the independent variable and the dependent variable. Justify your response.The following data was collected to explore how the number of square feet in a house, the number of bedrooms, and the age of the house affect the selling price of the house. The dependent variable is the selling price of the house, the first independent variable (x1�1) is the square footage, the second independent variable (x2�2) is the number of bedrooms, and the third independent variable (x3�3) is the age of the house. Effects on Selling Price of Houses Square Feet Number of Bedrooms Age Selling Price 11191119 33 33 100900100900 13081308 33 44 119800119800 14521452 33 66 189800189800 16931693 33 66 190500190500 20052005 33 66 196900196900 22102210 33 99 216600216600 23012301 44 99 250900250900 23452345 44 1010 267800267800 28532853 55 1313 270000270000 Copy Data Step 1 of 2 : Find the p-value for the regression equation that fits the given data. Round your answer to four decimal placesCellulon, a manufacturer of home insulation, wants to develop guidelines for builders and consumers on how the thickness of the insulation in the attic of a home and the outdoor temperature affect natural gas consumption. In the laboratory, it varied the insulation thickness and temperature. A few of the findings are: Monthly Natural Gas Consumption (cubic feet), Thickness of Insulation (inches), Outdoor Temperature (ºF), y x1 x2 30.3 6.0 40.0 24.2 12 40 27.9 8 49 On the basis of the sample results, the regression equation is: yˆy^ = 56.26 − 0.66x1 − 0.59x2 How much natural gas can homeowners expect to use per month if they install 6 inches of insulation and the outdoor temperature is 40 degrees F? (Round your answer to 2 decimal places.) What effect would installing 7 inches of insulation instead of 6 have on the monthly natural gas consumption (assuming the outdoor temperature remains at 40 degrees F)? (Round your answers…
- Explain the Theory of Multiple Regression Analysis?A researcher want to know if there is a relationship between sleep and anxiety. The researcher randomly selected n = 5 participants and asked each to rate their sleep quality and anxiety level on a scale of 1 to 5. The data are below: Sleep X Anxiety Y 2 2 3 3 2 2 4 2 5 2 Calculate the Sum of Squares for X (SSX)Two variables have a coefficient of determination of 0.8. Explain the significance of this value.
- Many times property value appraisers estimate the value of specific properties with minor or sometimes major difference. A company that builds apartment buildings in Athens considers two appraisers, A and B. who give an estimate of the sale price of their apartments. The sales department of the company has observed that in most cases appraiser A gives smaller value estimates of their apartments. The company would like to know if this is true for estimated values of apartments of other companies. Let X₁ be the appraisal value of an apartment of other companies by appraiser A. Let X2 be the appraisal value of an apartment of other companies by appraiser B. Also, let D=X₂-X₁. The company selected a random sample of apartments of other companies. Let be the appraisal value of each apartment in the sample by appraiser A. Let *2 be the appraisal value of each apartment in the sample by appraiser B. The measurements and *2 are in thousands of euros and are given below. Let d=x₂-x. At the 5%…Would you expect the weight (as in pounds) to be related to the ability to perform the job of a corporate CEO? Why or why not?TAQ 3 (Non-calculator): Tom is a window cleaner. The mixture he uses to clean his windows changes with the seasons. In summer he mixes one part detergent with nine parts water but in the winter he uses a ratio of detergent to water of 1:3 a) Is it true that in the winter the mixture is 30% water? Say how you know Tom has a 20 litre bucket and needs to change his mixture after washing 20 windows. His round on each day covers roughly 350 windows and he works roughly 25 days per month b) How many 10l containers of detergent will he need to buy per month? Show how you work this out TEF