We wish to determine a regression equation that relates the length of an infant(in cm) to age(in days)


We wish to determine a regression equation that relates the length of an infant(in cm) to age(in days)

To Purchase This Material Click below Link

http://www.tutorialoutlet.com/all-miscellaneous/we-wish-to-determine-a-regression-equation-that-relates-the-length-of-an-infant-in-cm-to-age-in-days-gender-and-weight-at-birth-in-kg/

FOR MORE CLASSES VISIT

www.tutorialoutlet.com

We wish to determine a regression equation that relates the length of an infant(in cm) to age(in days), gender and weight at birth(in kg). Below is portion of the regression analysis derived using stat. *Note: under the gender variable: male and female categories are assigned a value of 1 and 0, respectively.



Source SS degrees of freedom

Model 316.8866 3

Residual 71.4734 8



Coefficient Standard Error

Age 0.4798 0.0980

Weight 0.4020 1.0454

gender 1.3113 1.9591

cons 19.53           7.7829

Question.

a. What is the sample size for this problem?

b. Write the estimated regression equation, interpret each slope coefficients, use the proper unit of measurement.

c. Test for significance of the βage, βweight and βgender at the 99% confidence level.

d. From (b) which parameters are statistically significant.

e. Test whether or not there is a significant relationship between the infant's length and the independent variables. Use a 0.01 level of significance. Use only the critical value approach.

f. Determine the Coefficient of Determination, interpret.

g. Determine the Adjusted R^2, compared this with the value obtained from letter (d), are there any difference? why?

h. Estimate the length of a female infant that is 101 days old and weights 5.83kg.



In case you cannot understand some questions(because she has her own style of teaching statistic), please provide answers that you already have. Thank you so much!!!


Comments

Post a Comment

Popular posts from this blog

write a program that uses a structure named MovieData to store the following information about a movie

write a program that uses a structure named MovieData to store the following information about a movie To Purchase This Material Click below Link http://www.tutorialoutlet.com/all-miscellaneous/write-a-program-that-uses-a-structure-named-moviedata-to-store-the-following-information-about-a-movie/ FOR MORE CLASSES VISIT www.tutorialoutlet.com 1- write a program that uses a structure named MovieData to store the following information about a movie: o Title o Director o Year Released o Running Time (in minutes) 2- The program should create 2 MovieData variables, store values in their members, and pass each one, in turn, to a function that displays the information about the movie in a clearly formatted manner. use the C++ language. I want to create structure to store the information about the movies please follow the requirements above thanks
Read more

You are presented with the following reports estimating the mean increase in monthly household spending on gasoline over the past six months

You are presented with the following reports estimating the mean increase in monthly household spending on gasoline over the past six months To Purchase This Material Click below Link http://www.tutorialoutlet.com/all-miscellaneous/you-are-presented-with-the-following-reports-estimating-the-mean-increase-in-monthly-household-spending-on-gasoline-over-the-past-six-months/ FOR MORE CLASSES VISIT www.tutorialoutlet.com You are presented with the following reports estimating the mean increase in monthly household spending on gasoline over the past six months. Determine which report you find most convincing and explain your reasoning. 1. Based on a simple radom sample of 15​ households, we are​ 98% confident that the mean increase in monthly household spending on gasoline over the past six months is between​ $43.65 and​ $58.93. 2. Based on a simple random sample of 52​ households, we are​ 95% confident that the mean increase in monthly household spending on ga...
Read more

What is the probability that all three randomly selected households own a van

What is the probability that all three randomly selected households own a van To Purchase This Material Click below Link http://www.tutorialoutlet.com/all-miscellaneous/what-is-the-probability-that-all-three-randomly-selected-households-own-a-van/ FOR MORE CLASSES VISIT www.tutorialoutlet.com Suppose that a recent poll of American households about car ownership found that for households with a​ car, 39% owned a​ sedan, 33% owned a​ van, and​ 7% owned a sports car. Suppose that three households are selected randomly and with replacement. What is the probability that all three randomly selected households own a​ van? (Round to the nearest​ thousandth)
Read more