Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

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Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values. Answer the following questions: (20 points)

78	4.4
74	3.9
68	4
76	4
80	3.5
84	4.1
50	2.3
93	4.7
55	1.7
76	4.9
58	1.7
74	4.6
75	3.4
80	4.3
56	1.7
80	3.9
69	3.7
57	3.1
90	4
42	1.8
91	4.1
51	1.8

a) Calculate the correlation coefficient r (5 points)

b) Fit the regression model (predicting Y from X) and report the estimated intercept and slope. (5 points)

c) Test whether the slope equals 0. Report your hypothesis, test statistic, p-value. (10 points)

math Statistics-And-Probability

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Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

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78	4.4
74	3.9
68	4
76	4
80	3.5
84	4.1
50	2.3
93	4.7
55	1.7
76	4.9
58	1.7
74	4.6
75	3.4
80	4.3
56	1.7
80	3.9
69	3.7
57	3.1
90	4
42	1.8
91	4.1
51	1.8

78	4.4
74	3.9
68	4
76	4
80	3.5
84	4.1
50	2.3
93	4.7
55	1.7
76	4.9
58	1.7
74	4.6
75	3.4
80	4.3
56	1.7
80	3.9
69	3.7
57	3.1
90	4
42	1.8
91	4.1
51	1.8

Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

Homework Answers

Add Answer to: Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

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Earn Coins

Add Answer to:
Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....

78	4.4
74	3.9
68	4
76	4
80	3.5
84	4.1
50	2.3
93	4.7
55	1.7
76	4.9
58	1.7
74	4.6
75	3.4
80	4.3
56	1.7
80	3.9
69	3.7
57	3.1
90	4
42	1.8
91	4.1
51	1.8