True or False, why?

Only a very small (<5) percentage of measurements can be more than 2 standard deviations from the mean of the normal distribution?

Only a very small (<5) percentage of measurements can be more than 2 standard deviations from the mean of the any distribution?

If we would reject a null hypothesis at the 5% level, we would also reject it at the 1% level?

If we would reject a null hypothesis at the 1% level, we would also reject it at the 5% level?

The p-value, which is the Type I error rate, is chosen by the investigator before a hypothesis test is conducted?

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