What is the standard form of an equation with p=12 and phi=pi/4

pvalue = 0.4286 > 0.01, so this information does not suggest that the storm is (perhaps temporarily) increasing above the severe rating

Step-by-step explanation:

The null hypothesis is:

The alternate hypotesis is:

Our test statistic is:

In which X is the statistic, is the mean, is the standard deviation and n is the size of the sample.

In this problem, we have that:

So

Looking at the z-table, z = t = 0.18 has a pvalue of 0.5714.

The alternate hypothesis is accepted if there is a lower than 1%(Because of α = 0.01) probability of finding a value higher than X.

In this problem, X = 16.5, with a pvalue of 0.5714.

1 - 0.5714 = 0.4286 > 0.01

So this information does not suggest that the storm is (perhaps temporarily) increasing above the severe rating