Answer correctly and read the question correctly, If the question is done correctly, I will write a very wonderful and long review about you! Take your time answering the questions, this is all one question, please answer correctly, thank you very much. PLEASE ANSWER ALL of the questions correlty and please answer all the questions with what it regards in saying exactly, please and thank you take your time. Ive read the guide lines and honor code that i can Submit a question at a time under the appropriate subject. A question can have up to subparts (i.e. part a, b, c, ect). If you dont belive me here is the link of barthleby saying exactly that thanks: https://bartleby.zendesk.com/hc/en-us/articles/360017462394-How-can-I-ensure-my-questions-get-answered-as-quickly-as-possible- While taking a course on mathematical biostatistics, your roommate recorded the number of hours they spent on a sample of ten assignment problems and the number of points each assignment was worth. Their data are shown below. Number of hours spent (X): 1.7, 1.9, 1.8, 2.2, 0.4, 1.3, 2.8, 2.1, 1.4, 2.2 Number of points worth (Y): 8, 3, 8, 11, 2, 3, 12, 7, 7, 4 Test whether there is a significant (non-zero) correlation between the two variables. a) Compute the sum of products and sums of squares for X and Y. Then use these quantities to compute the Pearson correlation coefficient. b) Find the critical value for an alpha level of .05 and convert the Pearson correlation to a test statistic. Compare the observed test statistic with the critical value to decide whether the obtained correlation is significantly different from zero. c) Dr. Purr had data from 31 cats on two variables, grooming (X) and fluffiness (Y). Unfortunately, she has lost the raw data, and all she has are the following summary statistics: x̄ = 18, S Subscript X = 3, ȳ = 51, S Subscript y = 11, r = 0.3 To help her make predictions about cats' fluffiness, find the regression equation given the data at hand.
Q5- Answer correctly and read the question correctly, If the question is done correctly, I will write a very wonderful and long review about you! Take your time answering the questions, this is all one question, please answer correctly, thank you very much.
PLEASE ANSWER ALL of the questions correlty and please answer all the questions with what it regards in saying exactly, please and thank you take your time. Ive read the guide lines and honor code that i can Submit a question at a time under the appropriate subject. A question can have up to subparts (i.e. part a, b, c, ect). If you dont belive me here is the link of barthleby saying exactly that thanks: https://bartleby.zendesk.com/hc/en-us/articles/360017462394-How-can-I-ensure-my-questions-get-answered-as-quickly-as-possible-
While taking a course on mathematical biostatistics, your roommate recorded the number of hours they spent on a sample of ten assignment problems and the number of points each assignment was worth. Their data are shown below.
Number of hours spent (X): 1.7, 1.9, 1.8, 2.2, 0.4, 1.3, 2.8, 2.1, 1.4, 2.2
Number of points worth (Y): 8, 3, 8, 11, 2, 3, 12, 7, 7, 4
Test whether there is a significant (non-zero)
a) Compute the sum of products and sums of squares for X and Y. Then use these quantities to compute the Pearson
b) Find the critical value for an alpha level of .05 and convert the Pearson correlation to a test statistic. Compare the observed test statistic with the critical value to decide whether the obtained correlation is significantly different from zero.
c) Dr. Purr had data from 31 cats on two variables, grooming (X) and fluffiness (Y). Unfortunately, she has lost the raw data, and all she has are the following summary statistics:
x̄ = 18, S Subscript X = 3, ȳ = 51, S Subscript y = 11, r = 0.3
To help her make predictions about cats' fluffiness, find the regression equation given the data at hand.
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