4hey can you help me answer this question below pleaseTry to explain your results: e.g. why there is a positive, negative or no comovement between the two variables Comovement between the Cyclical Compnonet of Maleand Fémale Hourly Real wage from 1977- 20192.001.501.000.500.00-0.50-1.00-0.500.000.501.001.50Hourly real Wage for Males (Dollars)Hourly real Wage for Female (Dollars)

For the given scatter plot explain your results: e.g. why there is a positive, negative or no…

Answered: Try to explain your results: e.g. why…

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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How to find nullityA
show how to do it on a TI-84 please and thank you From the data, find the least-squares regression line. What type of correlation is there? Study Hours Test Score 0 20 1 35 2 50 4 47.5 4 65 5 72.5 5 75 6 67.5 6 92.5 7 85 7 90 8 95 5 70 y=9.051+24.765x.y=9.051+24.765x. There is positive linear correlation. y=24.765−9.051x.y=24.765-9.051x. There is negative linear correlation. y=24.765+9.051x.y=24.765+9.051x. There is positive linear correlation. y=−24.765+9.051x.y=-24.765+9.051x. There is negative linear correlation y=9.051−24.765x.y=9.051-24.765x. There is negative linear correlation.
What is the equation for computing the degrees of freedom (df) for a hypothesis test of independence of categorical data? O df = (number of rows + 1) (number of columns + 1) df = (number of rows) (number of columns) df = (number of rows - 1) (number of columns - 1) O df = n - 1
using Excel: The General Manager has heard a rumor that the employees with a “low” salary are working more hours (on average) than the employees with a “high” salary. The manager asks you to find out if the difference in average working hours is significantly more on the “low” salary employees than on the “high” salary employees. Use a t-test please explain on excel. State the null and alternative hypothesis and Show the summary output (No need to show it just explain how and which intercepts to select using EXCEL) Satisfaction Level 2020 Satisfaction Level 2019 number_project average_montly_hours time_spend_company Work_accident promotion_last_5years position salary 0.41 0.46 2 128 3 0 0 accounting low 0.38 0.5 2 132 3 0 0
How does changing the degrees of freedom (df) in a t-test affect the outcome?
How many independent variables entered in the overall model and was/were not able to enter? What is the coefficient of determination in the overall model?
True or False? The r2 value and a least squares regression line can be an excellent way to demonstrate the degree of correlation between two variables, and the type of association between the two variables. This quation was asked twice in bartley but the answers were different. Clarification is needed. Thank you
On minitab or excel Calculating the coefficient of determination of a set of data, it was obtained that r^2 = 0.845 . Based on this value, it can be concluded that: Options: The least squares line provided a good fit as a large proportion of the variability in "y" has been explained by the least squares line. The least squares line provided a good fit as a small proportion of the variability in "y" has been explained by the least squares line. The least squares line did not provide a good fit since a small proportion of the variability in "y" has been explained by the least squares line. The least squares line did not provide a good fit since a large proportion of the variability in "y" has been explained by the least squares line.
I am really not sure if that answer id true or false
Question: T-tests are widely used in public health research. Please list one scenario that a two-sample t-test is appropriate, and one scenario that paired t-test is appropriate. Make sure to justify why the specific type of t-test is appropriate for the scenario.
A hypothesis test result is considered to be statistically significant only when?
Does second order slip perform better than the first order slip ?Justify your answer with evidence

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