Considering the following dataset: X: 1 2 3 &n
Considering the following dataset:
X: 1 2 3 4 5 6 7 8
--------------------------------------------------------------------------------------------------
Y: 2 1 4 8 11 11 12 21
A) Use the formulae discussed in class to compute a and b for Y = a + bX, and the value for R-Squared. Show all work.
B) Use Minitab to create a Fitted Line Plot for the same data. Discuss any similarities or differences between your output in part 1 and the output of Minitab.
Homework Answers
Help is needed on question 1. The second picture is the data set “Showtime.xlsx” needed to...
Help is needed on question 1. The second picture is the data
set “Showtime.xlsx” needed to answer the question .
Stat 351 Homework #5 (Section 15.8-16.1) Make sure to show your work if you did any caleulation, and Minitab output if you used Minitab. I. Please download the dataset "Showtime.xlsx" from Canvas. The dataset "Showtime.xlsx" gives the data on weekly gross revenue (y), television advertising (x1), and newspaper advertising (32) for Showtime Movie Theaters. Use Minitab to help you answer...
Assignment 2 PART 1. 1. Use the dataset below to run a regression where x1 and...
Assignment 2 PART 1. 1. Use the dataset below to run a regression where x1 and x2 are the independent variables and y is the dependent variable. y x1 x2 2 10 9 88 5 6 19 10 6 18 5 2 30 3 2 What is b1 (the coefficient on x1) for this regression? Round your answer to four decimal places. 2. Use the dataset below to run a regression where x1 and x2 are the independent variables and...
1. Please use this dataset to answer the following questions: 4, 3, 6, 5, 3, 2,...
1. Please use this dataset to answer the following questions: 4, 3, 6, 5, 3, 2, 4, 5, 7, 6, 3, 4, 6, 6, 1, 7, 8, 8, 23, 4, 0, 2, 6, 9, 6, 1, 5, 7, 4, 5 (1) Please calculate mean, median and mode. (2) Please calculate sample standard deviation. (3) According to your answer in part (2), please explain why sample standard deviation can never be negative. (4) Please calculate first quartile, second quartile, and third...
Exercises Present the results and solutions of the problems in a document, similar to that of...
Exercises Present the results and solutions of the problems in a document, similar to that of the examples portion above. Copy and paste the plots, the function may be hand written but the rest should be word processed. You may print the plots, however, it is suggested that you copy and paste into your solution word document. To include MINITAB plots in MSword document: right click in the gray area of the figure window, select Copy Graph then paste into...
Use Excel to calculate for the following dataset: X Y 1 10 1 12 3 13...
Use Excel to calculate for the following dataset: X Y 1 10 1 12 3 13 3 17 5 17 5 21 the correlation coefficient: Please round to two decimals the value of the intercept, b0: the value of the slope, b1: the predicted value of Y when X =5:
Plot a graph of the following the pairs of values, x and y respectively. ( x=2,...
Plot a graph of the following the pairs of values, x and y respectively. ( x=2, y= 4) ; (x= 3.8,y= 7.6) ; ( x=6.2; y=11) ; ( x=8.0, y=17) Draw a best fitted straight line thru data points and find the value of its slope.
11. Consider the following set of n-6 observations of x and y given in Table 1...
11. Consider the following set of n-6 observations of x and y given in Table 1 i. Graph the observations in a scatter plot on paper by hand by plotting x on the x-axis and y on the y-axis. Comment on the relationship. Using observations from Table 1, what are the sample means i and-? Using observations from Table 1, calculate the deviations and squared deviations from the sample mean for x: (x 11. iii. -x) and (x )for each...
1. Use Minitab to get the same type of output (including graphs) with the following Income/Education data as the li...
1. Use Minitab to get the same type of output (including graphs) with the following Income/Education data as the little data set discussed in class. Do the regression of Income on Education. Interpret the meaning of the coefficient of Education. What do you predict income to be for a person with 17 years of education? Why do you think Income for 21 years of Education is lower than Income for 19 years of Education in the data set? Education in...
A very small dataset with two variables is as following x12 3 4 5 10 Suppose the regression line is y-a+bx a). Find the value of b. b). Find the value of a. c). From computer, we find, SSR-4.9, S...
A very small dataset with two variables is as following x12 3 4 5 10 Suppose the regression line is y-a+bx a). Find the value of b. b). Find the value of a. c). From computer, we find, SSR-4.9, SSE-5.1. Based on these, find F-value. d). Can we conclude that there is significant relationship between y and x at significance level 0.10?
A very small dataset with two variables is as following x12 3 4 5 10 Suppose the regression...
Below are given (a) A scatterplot of Y versus X and (b) A plot of residuals...
Below are given (a) A scatterplot of Y versus X and (b) A plot
of residuals versus fitted values after a simple linear regression
model was fit to the data. What is the equation of the fitted line?
Discuss what is indicated about the relationship between Y and X as
it relates to simple linear regression.
Fitted Line Plot Y = - 14.64 + 7.431 X R-Sq R-Sq (adj) 2.43700 91.9% 91.8% 1 > 20- 3 4 5 6 7...
Help is needed on question 1. The second picture is the data
set “Showtime.xlsx” needed to answer the question .
Stat 351 Homework #5 (Section 15.8-16.1) Make sure to show your work if you did any caleulation, and Minitab output if you used Minitab. I. Please download the dataset "Showtime.xlsx" from Canvas. The dataset "Showtime.xlsx" gives the data on weekly gross revenue (y), television advertising (x1), and newspaper advertising (32) for Showtime Movie Theaters. Use Minitab to help you answer...
Exercises Present the results and solutions of the problems in a document, similar to that of the examples portion above. Copy and paste the plots, the function may be hand written but the rest should be word processed. You may print the plots, however, it is suggested that you copy and paste into your solution word document. To include MINITAB plots in MSword document: right click in the gray area of the figure window, select Copy Graph then paste into...
11. Consider the following set of n-6 observations of x and y given in Table 1 i. Graph the observations in a scatter plot on paper by hand by plotting x on the x-axis and y on the y-axis. Comment on the relationship. Using observations from Table 1, what are the sample means i and-? Using observations from Table 1, calculate the deviations and squared deviations from the sample mean for x: (x 11. iii. -x) and (x )for each...
1. Use Minitab to get the same type of output (including graphs) with the following Income/Education data as the little data set discussed in class. Do the regression of Income on Education. Interpret the meaning of the coefficient of Education. What do you predict income to be for a person with 17 years of education? Why do you think Income for 21 years of Education is lower than Income for 19 years of Education in the data set? Education in...
A very small dataset with two variables is as following x12 3 4 5 10 Suppose the regression line is y-a+bx a). Find the value of b. b). Find the value of a. c). From computer, we find, SSR-4.9, SSE-5.1. Based on these, find F-value. d). Can we conclude that there is significant relationship between y and x at significance level 0.10?
A very small dataset with two variables is as following x12 3 4 5 10 Suppose the regression...
Below are given (a) A scatterplot of Y versus X and (b) A plot
of residuals versus fitted values after a simple linear regression
model was fit to the data. What is the equation of the fitted line?
Discuss what is indicated about the relationship between Y and X as
it relates to simple linear regression.
Fitted Line Plot Y = - 14.64 + 7.431 X R-Sq R-Sq (adj) 2.43700 91.9% 91.8% 1 > 20- 3 4 5 6 7...
Most questions answered within 3 hours.
-
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 3 minutes ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 7 minutes ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 1 hour ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 1 hour ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 1 hour ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 1 hour ago -
Michaella, age 23, is a full-time law student and is claimed by
her parents as a...
asked 1 hour ago -
Why are polymers not typically casted into products?
asked 1 hour ago -
When rolling a die 129 times, what is the probability of rolling
a 6 no more...
asked 2 hours ago -
4. A call option currently sells for $7.75. It has a strike
price of $85 and...
asked 1 hour ago -
1.
You need to prepare 10.0 liters of an acid aqueous solution with a
pH of...
asked 1 hour ago -
Along an aggregate supply curve, if the level of output is less
than the natural level...
asked 1 hour ago