You wish to determine if there is a linear correlation between the two variables at a significance level of 0.05. You have the following bivariate data set. a = y 20.5 27.9 16.5 71.1 16.5 71.2 32.1 49.4 41.4 9.1 35.7 52.2 52.9 28.2 -19.9 64.7 11.4 103.7 20.9 78.3 24.3 53 24.6 104 34.8 55.9

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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You wish to determine if there is a linear correlation between the two variables at a significance level of \(\alpha = 0.05\). You have the following bivariate data set.

\[
\begin{array}{c|c}
x & y \\
\hline
27.9 & 20.5 \\
16.5 & 71.1 \\
16.5 & 71.2 \\
32.1 & 49.4 \\
41.4 & 9.1 \\
35.7 & 52.2 \\
52.9 & -19.9 \\
28.2 & 64.7 \\
11.4 & 103.7 \\
20.9 & 78.3 \\
24.3 & 53 \\
24.6 & 104 \\
34.8 & 55.9 \\
\end{array}
\]

**What is the critical value for this hypothesis test?**
\[ r_{c.v.} = \]

**What is the correlation coefficient for this data set?**
\[ r = \]

**Your final conclusion is that...**
- ☐ There is insufficient sample evidence to support the claim that there is a correlation between the two variables.
- ☐ There is sufficient sample evidence to support the claim that there is a statistically significant correlation between the two variables.

*Note: In your calculations, round both \(r\) and \(t\) to 3 decimal places in ALL calculations.*
Transcribed Image Text:You wish to determine if there is a linear correlation between the two variables at a significance level of \(\alpha = 0.05\). You have the following bivariate data set. \[ \begin{array}{c|c} x & y \\ \hline 27.9 & 20.5 \\ 16.5 & 71.1 \\ 16.5 & 71.2 \\ 32.1 & 49.4 \\ 41.4 & 9.1 \\ 35.7 & 52.2 \\ 52.9 & -19.9 \\ 28.2 & 64.7 \\ 11.4 & 103.7 \\ 20.9 & 78.3 \\ 24.3 & 53 \\ 24.6 & 104 \\ 34.8 & 55.9 \\ \end{array} \] **What is the critical value for this hypothesis test?** \[ r_{c.v.} = \] **What is the correlation coefficient for this data set?** \[ r = \] **Your final conclusion is that...** - ☐ There is insufficient sample evidence to support the claim that there is a correlation between the two variables. - ☐ There is sufficient sample evidence to support the claim that there is a statistically significant correlation between the two variables. *Note: In your calculations, round both \(r\) and \(t\) to 3 decimal places in ALL calculations.*
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