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Based on the data from six students, the regression equation
Based on the data from six students, the regression equation relating number of hours of preparation (x) and test score (y) is y-hat = 67.3 + 1.07x. The same data yield r = 0.224 and y-bar = 75.2. Wha… read more
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GLENN GILONGOS
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I need help with a multiple choice test, it consists of
I need help with a multiple choice test, it consists of around 80 multiple choice questions is about statistics.… read more
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Find the unexplained variation paired data. The paired data
Find the unexplained variation for the paired data. The paired data below consists of test scores and hours of preparation for 5 randomly selected students. The equation of the regression line is y-ha… read more
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GLENN GILONGOS
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Find the explained variation paired data. The paired data
Find the explained variation for the paired data. The paired data below consists of test scores and hours of preparation for 5 randomly selected students. The equation of the regression line is y-hat … read more
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Question 1The total variation in response, assuming no
Question 1 The total variation in response, assuming no bias, is due to error (unexplained or unsystematic variation) plus differences due to treatments (systematic variation explained by the model). … read more
Expert
Expert
Hours of Study Exam score 7 63 4 60 3 48 2.5 51 16 80 5 65 1.7 53 13 8
Hours of Study Exam score 7 63 4 60 3 48 2.5 51 16 80 5 65 1.7 53 13 83 12 80 6 73 9 65 18 82 4 85 8 67 9 69 11.5 72 12 74 14 75 17 78 21 91.5 20 94 25 97 22 93 24 89 19 90 26 88 27 95 18.5 84 25.5 94… read more
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I need help with my intermediate statistics quiz right now!
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. ALPHA = 0.05 for a left-tailed test. I ne… read more
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Question 1 (10 points) Question 1 Unsaved Use the given
Question 1 (10 points) Question 1 Unsaved Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. x| 24 26 28 30 32 y| 15 13 2… read more
JACUSTOMER-yrynbdjl-
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1. Given the linear correlation coefficient r and the sample
1. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correla… read more
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I need help with an intro to statistics quiz. It is 20 questions
I need help with an intro to statistics quiz. It is 20 questions multiple choice. It has to be done today and I have 2 hours.… read more
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I need help with homework. It is 10 multiple choice questions
I need help with homework. It is 10 multiple choice questions and it is from intro to statistics. Anytime today. No hurry!… read more
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1. Given the linear correlation coefficient r and the sample
1. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correla… read more
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Assignment 2: Linear Correlation and Hypothesis Testing You
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Assignment 2: Linear Correlation and Hypothesis TestingYou
Assignment 2: Linear Correlation and Hypothesis Testing You will be examining pairs of variables to determine if there is any linear relation between the variables. Background Reading: Linear relation… read more
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Given the linear correlation coefficient R and the sample N
Question 1 of 20 Given the linear correlation coefficient r and the smaple size n, determine the critical values of r and use your finiding to state whether or not the given r represents a significant… read more
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1. A researcher obtained a correlation of r = –0.72 between
1. A researcher obtained a correlation of r = –0.72 between the amount of time spent watching television and grade point average for college students. This means that there is a general tendency for s… read more
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A die with 6 sides is rolled. What is the probability?
1. Find the indicated probability. A die with 6 sides is rolled. What is the probability of rolling a number less than 5? (Points : 5) 4 2/3 1/6 5/6 2. From the information provided, create the sample… read more
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1. Find the mean for the given sample data. Unless indicated
1. Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. The students in Hugh Logan's math class… read more
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