Considering the one-sided p-value, the p-value for a two-sided test would be of 0.20.
<h3>How to find the p-value of a test?</h3>
It depends on the test statistic z, as follows:
For a left-tailed test, it is the area under the normal curve to the left of z, which is the p-value of z.
For a right-tailed test, it is the area under the normal curve to the right of z, which is 1 subtracted by the p-value of z.
For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is 2 multiplied by 1 subtracted by the p-value of z, which means that <u>the p-value for a two-tailed test is </u><u>twice </u><u>the p-value of a one-tailed test</u>.
In this problem, for the one-tailed test, the p-value is of 0.1, hence the p-value for a two-sided test would be of 0.20.
