Use the following information to run a Correlational analysis. Write a paragraph description about the conclusion...
Use the following information to run a Correlational analysis. Write a paragraph description about the conclusion you draw based on the prompt.
how does it relate to null and alternative hypothesis
how do we calculate critical values
Suppose you collected the following information where X is the diameter of a tree trunk and Y is the tree’s height.
|
X |
Y |
|
4 |
8 |
|
2 |
4 |
|
8 |
18 |
|
6 |
22 |
|
10 |
30 |
|
6 |
8 |
Homework Answers
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Use the following information to run a Correlational analysis.
Write a paragraph description about the conclusion...
Use the following information to run a Correlational analysis. Write a paragraph description about the conclusion...
Use the following information to run a Correlational analysis. Write a paragraph description about the conclusion you draw based on the prompt. Suppose you collected the following information where X is the diameter of a tree trunk and Y is the tree’s height. X Y 4 8 2 4 8 18 6 22 10 30 6 8
Base on the information below report your measures of effect size and proportion of variability Write...
Base on the information below report your measures of effect size and proportion of variability Write a formal paragraph to interpret your results Problem 1: Mr. V is interested in testing if student evaluations differ from his class before and after they went online. He randomly asks 7 students to rate how much they enjoyed the class on a level of 1 to 10 before and after. The following data was collected, run the appropriate computation. Before online: 6, 4,...
for the data below test weather the linear correlation between x and y is significant. use...
for the data below test weather the linear correlation between x and y is significant. use a significance level of 0.05. X= 6, 8, 20, 28,36 Y= 2, 4, 13, 20, 30 null hypothesis alternative null= test statistics p value= reject or fail to reject null = formal conclusion=
Based on the information below, please write a conclusion paragraph and also a 1 to 2...
Based on the information below, please write a conclusion
paragraph and also a 1 to 2 paragraphs on recommendations for the
objectives below.
Overview: In responding to a Request for Proposal (RFP), XYZ Contractor is preparing a lump sum price proposal for digging an underground hole with specifications below. • 10m x 10m x 5m - Concept Design • No geotechnical data, assume 80% soil, 20% rock • Productivity rate in soil: 20m3/d 10m • Productivity rate in rock: 10m3/d...
Consider the following set of dependent and independent variables. Complete parts a through c below. y 10 11 14 14 20 24 26 32 저15597121521 x2 17 11 13 11 2 8 6 4 a. Using technology, construct a re...
Consider the following set of dependent and independent variables. Complete parts a through c below. y 10 11 14 14 20 24 26 32 저15597121521 x2 17 11 13 11 2 8 6 4 a. Using technology, construct a regression model using both independent variables. y = 1 3.5734 ) + ( 0.9496 ) x 1 + (-0.4001 ) x2 (Round to four decimal places as needed.) b. Test the significance of each independent variable using a 0.10. Test the...
1) Compute the Population Mean, Variance and standard Deviation of the 20 men in seconds the...
1) Compute the Population Mean, Variance and standard Deviation of the 20 men in seconds the subjects stayed balanced. 2) Identify a random sample of 10 men and find the sample mean (avaerage balance time in seconds) 3) Find he Median number of days per week exercised. 4) Find the Mode of the favorite exercise. 5) Construct a complete hypothesis test and determine if the two groups (population mean vs sample mean) have significantly different balance using Alpha Level ->...
8. Use the following information from a multiple regression analysis. n = 15 b1 = 5...
8. Use the following information from a multiple regression analysis. n = 15 b1 = 5 b2 = 6 Sb1 = 1.4 Sb2 = 0.8 a. Which variable has the largest slope, in units of a t statistic? The variable _____ has the largest slope, with tSTAT = _____ b. Construct a 90% confidence interval estimate of the population slope, β1. c. Begin by determining whether X1 makes a significant contribution to the regression model. Determine the null and alternative...
are the figures for 5 subjects: Height (cm) 157 116122 125 118 Weight (kg) 36.2 25.5...
are the figures for 5 subjects: Height (cm) 157 116122 125 118 Weight (kg) 36.2 25.5 26.5 27.7 27.6 The following summary statistics are available x 127.60 y- 28.7 S(x,x) 1129.2 Sy) 73.54 Sa) 2831 Calculate the sample correlation coefficient for these data. 09824 Please record your answer to 4 decimal places What is the critical value that you would compare your sample correlation coefficient value in order to test Hop:0 vs H' ρ 0 using a 5% significance level?...
A group of children were measured to find how tall they are, and what is their...
A group of children were measured to find how tall they are, and what is their weight, here are the figures for 5 subjects: Height (cm) 157 116 122 125 118 Weight (kg) 36.2 25.5 26.5 27.7 27.6 The following summary statistics are available: x- 127.60 y- 28.7 Sxr 1129.2 SOV)= 73.54 S(r.y)- 283.1 Calculate the sample correlation coefficient for these data. Please record your answer to 4 decimal places Please record your answer to 4 decimal places. What is...
Use the given information to complete the test to determine if there is significant linear correlation...
Use the given information to complete the test to determine if there is significant linear correlation between numbers of hours a student spent preparing for a test and test scores. Use a significance level of 0.05. 1) The test scores of 6 randomly picked students and the numbers of hours they prepared are 1) as follows: Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 The equation of the regression line is y = 1.06604x...
for the data below test weather the linear correlation between x and y is significant. use a significance level of 0.05. X= 6, 8, 20, 28,36 Y= 2, 4, 13, 20, 30 null hypothesis alternative null= test statistics p value= reject or fail to reject null = formal conclusion=
Based on the information below, please write a conclusion
paragraph and also a 1 to 2 paragraphs on recommendations for the
objectives below.
Overview: In responding to a Request for Proposal (RFP), XYZ Contractor is preparing a lump sum price proposal for digging an underground hole with specifications below. • 10m x 10m x 5m - Concept Design • No geotechnical data, assume 80% soil, 20% rock • Productivity rate in soil: 20m3/d 10m • Productivity rate in rock: 10m3/d...
Consider the following set of dependent and independent variables. Complete parts a through c below. y 10 11 14 14 20 24 26 32 저15597121521 x2 17 11 13 11 2 8 6 4 a. Using technology, construct a regression model using both independent variables. y = 1 3.5734 ) + ( 0.9496 ) x 1 + (-0.4001 ) x2 (Round to four decimal places as needed.) b. Test the significance of each independent variable using a 0.10. Test the...
1) Compute the Population Mean, Variance and standard Deviation of the 20 men in seconds the subjects stayed balanced. 2) Identify a random sample of 10 men and find the sample mean (avaerage balance time in seconds) 3) Find he Median number of days per week exercised. 4) Find the Mode of the favorite exercise. 5) Construct a complete hypothesis test and determine if the two groups (population mean vs sample mean) have significantly different balance using Alpha Level ->...
are the figures for 5 subjects: Height (cm) 157 116122 125 118 Weight (kg) 36.2 25.5 26.5 27.7 27.6 The following summary statistics are available x 127.60 y- 28.7 S(x,x) 1129.2 Sy) 73.54 Sa) 2831 Calculate the sample correlation coefficient for these data. 09824 Please record your answer to 4 decimal places What is the critical value that you would compare your sample correlation coefficient value in order to test Hop:0 vs H' ρ 0 using a 5% significance level?...
A group of children were measured to find how tall they are, and what is their weight, here are the figures for 5 subjects: Height (cm) 157 116 122 125 118 Weight (kg) 36.2 25.5 26.5 27.7 27.6 The following summary statistics are available: x- 127.60 y- 28.7 Sxr 1129.2 SOV)= 73.54 S(r.y)- 283.1 Calculate the sample correlation coefficient for these data. Please record your answer to 4 decimal places Please record your answer to 4 decimal places. What is...
Use the given information to complete the test to determine if there is significant linear correlation between numbers of hours a student spent preparing for a test and test scores. Use a significance level of 0.05. 1) The test scores of 6 randomly picked students and the numbers of hours they prepared are 1) as follows: Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 The equation of the regression line is y = 1.06604x...
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