Numerical Analysis The following data for 7 students where x represents the absence and y is thegrade in physics course at exam. Find the correlation coefficient and interpret yourresult. using z score methodXy1085 80455 902 670390395

The question is about correlation Given : No. of students ( n ) = 7 Data : To find : Using z…

Answered: The following data for 7 students where…

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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Using the information below calculate the predicted value for Y for the given value of X. Y (Dependent Variable) = Cost of a house in thousands of dollars (i.e. Y = 1 means one-thousand dollars) X (Independent Variable) = size of the house in hundreds of square feet (i.e. X = 1 means one-hundred square feet) yhat = 10 + 12.3*X On average how many thousands of dollars will a house cost if it is 20 hundred square feet (round your answer to 4 decimal places)?
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Model Model Model ModelCurrent New Current New Current New Current New264 277 270 272 263 274 281 283261 269 287 259 264 266 274 250267 263 289 264 284 262 273 253272 266 280 280 263 271 263 260258 262 272 274 260 260 275 270283 251 275 281 283 281 267 263258 262 265 276 255 250 279 261266 289 260 269 272 263 274 255259 286 278 268 266 278 276 263270 264 275 262 268 264 262 279 1. Formulate and present the rationale for a hypothesis test that Par could use to comparethe driving distances of the current and new golf balls.2. Analyze the data to provide the hypothesis testing conclusion. What is the p-valuefor your test? What is your recommendation for Par, Inc.?3. Provide descriptive statistical summaries of the data for each model.4. What is the 95% confidence interval for the population mean driving distance ofeach model, and what is the 95% confidence interval for the difference between themeans of the two populations?5. Do you see a need for larger sample sizes and more testing with…
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numerical analysis question/Create the exponential approximation curve in the form in the picture according to the points given below using the least squares method (use 4 decimal places after the comma).
Description In an industrial laboratory, under uniform conditions, batches of electrical insulating fluid were subjected to constant voltages until the insulating property of the fluids broke down. Seven different voltage levels were studied and the measured reponses were the times until breakdown. Some R code to help you get started. library('Sleuth3') ?case0802 head(case0802) model = Im(Time~Voltage,data = case0802) summary(model)#Prints information about the model plot(model, which=c(1)) hist(model$residuals) Answer the following questions to the best of you ability and select all that apply. It is reasonable to assume that observations are independent. A histogram of the residuals shows that the assumption of normality is likely true. Observations are not independent According to the model a voltage of 10 kV will result in a failure time of 134667 minutes A histogram of the residuals shows that the assumption of normality is likely false. According to the model a voltage of 10 kV…

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The following data for 7 students where x represents the absence and y is the grade in physics course at exam. Find the correlation coefficient and interpret your result. using z score method y 1 85 0 80 2 70 6 4 55 90 3 90 3 95