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$\text{W1, W2, W3...W9}$ represent the holding times of $9$ water samples, which follow a normal distribution with mean $=8.33$ and standard deviation $=4.472$.$\text{M}$ represents the sample mean value of holding times, which also has a normal distribution. Assuming $\mathrm{Z}$ has a standard normal distribution $\text{(mean $=0$ and standard deviation $=1$)}$, select the correct statement which describes the expression for calculating the value of type $1$ error where
$$
\begin{array}{ll}
\text { null hypothesis }\left(\mathrm{H}_0\right): & \mathrm{M}>6 \\
\text { alternate hypothesis }\left(\mathrm{H}_{\mathrm{a}}\right): & \mathrm{M} \leq 6
\end{array}
$$

  1. $\mathrm{P}\{\mathrm{Z}<(-1.565)\}$
  2. $\mathrm{P}\{\mathrm{Z}<1.565\}$
  3. $\mathrm{P}\{\mathrm{Z}>(-1.565)\}$
  4. $\mathrm{P}\{\mathrm{Z}>1.565\}$

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