A BIO4158 student was analyzing a dataset of 61 observations for a laboratory assignment and generated the following plots and regression results: 100-

MATLAB: An Introduction with Applications
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URGENT PLEASE ANSWER ASAP. THIS IS NOT A GRADED QUESTION.

Identify five numbers that are clearly incorrect and explain why each number is wrong. Assume the plots are correct.

A BIO4158 student was analyzing a dataset of 61 observations for a laboratory
assignment and generated the following plots and regression results:
100-
75-
X
50-
25-
Call:
lm (formula = yx, data = err)
Residuals:
Min
0-
1Q Median
3Q
-17.262 -8.592 -1.282 7.301
Coefficients:
(Intercept)
X
Estimate Std.
3.248
-1.231
50
Analysis of Variance Table
Response: y
Max
20.575
75
Error t value Pr(>|t|)
2.786 -1.166
0.249
0.048 25.651
0.048 ***
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05
. 0.1
Residual standard error: 10.09 on 59 degrees of freedom
Multiple R-squared: 0.9307, Adjusted R-squared:
Df Sum Sq Mean Sq F value Pr (>F)
1 66988 66988 57.95 < 2.2e-16 ***
Residuals 50 4989
102
0.9293
I
1
Signif. codes: 0 '*** 0.001 '**' 0.01 '*' 0.05 '. 0.1
When grading this assignment, the TA gave the student a mark of zero, claiming five
of the numbers in their output were impossible.
1
Transcribed Image Text:A BIO4158 student was analyzing a dataset of 61 observations for a laboratory assignment and generated the following plots and regression results: 100- 75- X 50- 25- Call: lm (formula = yx, data = err) Residuals: Min 0- 1Q Median 3Q -17.262 -8.592 -1.282 7.301 Coefficients: (Intercept) X Estimate Std. 3.248 -1.231 50 Analysis of Variance Table Response: y Max 20.575 75 Error t value Pr(>|t|) 2.786 -1.166 0.249 0.048 25.651 0.048 *** Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 . 0.1 Residual standard error: 10.09 on 59 degrees of freedom Multiple R-squared: 0.9307, Adjusted R-squared: Df Sum Sq Mean Sq F value Pr (>F) 1 66988 66988 57.95 < 2.2e-16 *** Residuals 50 4989 102 0.9293 I 1 Signif. codes: 0 '*** 0.001 '**' 0.01 '*' 0.05 '. 0.1 When grading this assignment, the TA gave the student a mark of zero, claiming five of the numbers in their output were impossible. 1
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