The following calculation have been made for the price of 12 stocks(x) on NSEo on a certain day along with volume of sales on share (y) . From these calculations.calculatep the regression equation of price of stocks on volume of shares sigma X=580, sigma Y= 370, sigma XY=11494, sigma X square=41658 Sigma Y square = 17206 ?
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- For the following exercises, use Table 4 which shows the percent of unemployed persons 25 years or older who are college graduates in a particular city, by year. Based on the set of data given in Table 5, calculate the regression line using a calculator or other technology tool, and determine the correlation coefficient. Round to three decimal places of accuracyThe following results are from data concerning the amount withdrawn from an ATM machine based on the amount of time spent at the ATM machine (SECONDS) and the gender, FEMALE (dummy variable = 1 for females and = 0 for males) and an interaction term, SECONDS*FEMALE Based on the regression results, what is the predicted amount withdrawn for a male who spends 20 at the ATM machine? (please express your answer using 1 decimal places)Suppose the following data were collected from a sample of 15 houses relating selling price to square footage and the architectural style of the house. Use statistical software to find the following regression equation: PRICEi=b0+b1SQFTi+b2COLONIALi+b3RANCHi+ei . Is there enough evidence to support the claim that on average, houses that are ranch style have lower selling prices than houses that are Victorian style at the 0.05 level of significance? If yes, write the regression equation in the spaces provided with answers rounded to two decimal places. Else, select "There is not enough evidence."Selling Price Square Footage Colonial (1 if house is Colonial style, 0 otherwise) Ranch (1 if house is Ranch style, 0 otherwise) Victorian (1 if house is Victorian style, 0 otherwise) 377640 1941 1 0 0 460996 3397 0 1 0 405781 2764 0 0 1 407216 2906 0 0 1 435139 3401 1 0 0 405275 2600 0 0 1 381141 2203 0 1 0 370490 2046 1 0 0 404070 2210 0 0 1 460196 3692 0 1 0 382780 2172 1 0 0 406466 2606 0 1…
- A researcher was interested in investigating whether the parent-child interaction time (in hours) is a predictor of a child's cognitive development. A sample of 9 children shown their parent-child interaction time and cognitive tests scores as below. 1. Base on the regression equation, estimate the predicted cognitive level for a child whose parent interacts with him 6 hours per day?A group of scientists are interested in finding out whether the days of rainfall during the dry season could predict the magnitude of butterfly migration in the local area during wet season. Every year for twenty years, they count the total days of rainfall during the dry season preceding the migration and measure the number of butterflies migrating in the following wet season. Which type of statistical test should they use to analyze their data? (pearson's r correlation OR, simple regression equation)For the 2011 season, suppose the average number of passing yards per attempt for a certain NFL team was 6.1. Use the estimated regression equation developed in part (c) to predict the percentage of games won by that NFL team. (Note: For the 2011 season, suppose this NFL team's record was 7 wins and 9 losses. Round your answer to the nearest integer.)
- You spilled water on your calculations from (a) and can't remember what your estimated regression parameters are. But you do have two possible estimated errors for each of your initial four observations:Suppose the following data were collected relating the selling price of a house to square footage and whether or not the house is made out of brick. Use statistical software to find the regression equation. Is there enough evidence to support the claim that on average brick houses are more expensive than other types of houses at the 0.010.01 level of significance? If yes, type the regression equation in the spaces provided with answers rounded to two decimal places. Else, select "There is not enough evidence." Price Sqft Brick (1 if brick, 0 if otherwise 241255 3392 0 184518 2038 1 176488 1906 0 240068 3329 0 169760 1828 0 185335 2081 0 172735 1926 0 224281 3425 0 172589 1676 1 214635 2735 1 199666 2373 1 208348 2662 1 218360 2834 1 230160 3254 0 164812 1431 0 191560 1839 1 203255 2456 1 173325 1530 0 168073 1381 1 179620 1457 1 Selecting a checkbox will replace the entered answer value(s) with the checkbox value.…Suppose the following data were collected relating the selling price of a house to a square footage and whether or not the house is made out of wood. Use statistical software to find the regression equation. Is there enough evidence to support the claim that on average wood houses are more expensive than other types of houses at the 0.05 level of significance? If yes, type the regression equation in the spaces provided with answers rounded to two decimal places. Else, select "There is not enough evidence" Selling Prices of Houses Price Sqft Wood (1 if wood, 0 if otherwise) 198637 2197 1 204780 2490 1 204200 2596 0 209184 2779 0 196696 2378 0 221429 2988 1 223290 3385 1 156740 1360 1 177254 1985 0 180533 1916 0 187262 1957 1 234023 3378 0 229634 3327 0 207475 2695 0 209448 2596 1 207347 2732 0 191976 2061 1 199300 2310 1 199943 2499 0 207985 2574 1 Selecting a checkbox will replace the entered answer value(s) with the checkbox value. If…
- The following results are from data concerning the amount withdrawn from an ATM machine based on the amount of time spent at the ATM machine (SECONDS) and the gender, FEMALE (dummy variable = 1 for females and = 0 for males) and an interaction term, SECONDS*FEMALE Based on the regression results, if a male and female each spend the same amount of time at the ATM machine (say 27 seconds), how much more (or less) will a male withdraw? (if a male withdraws more then your answer should be a positive number and if a male withdraws less then your answer should be a negative number? (please express your answer using 1 decimal places)Are boys, on average, heavier than girls at birth, all other factors beingequal? If so, by how much? Is the di§erence between boys and girlsestimated from this regression statistically significant at the 5% level?If the coefficient of determination for a simple regression is 38.9534%, what is the correlation value between the dependent and independent variable? Assume that the variables have a positive relationship. Enter your answer as a decimal.
