The test statistic of z equals negative 1.37 is obtained when testing the claim that p equals1 divided by 4. a. using a significance level of alpha equals 0.01, find the critical value(s). b. should we reject upper h 0 or should we fail to reject upper h 0?

a) critical value = 0.0853, b) we reject the null hypothesis.

Step-by-step explanation:

Since we have given that

z = -1.37

And the hypothesis are given below:

Since α = 0.01

since critical value = 0.0853

As we can see that 0.853 < 0.25.

so, we reject the null hypothesis.

Hence, a) critical value = 0.0853, b) we reject the null hypothesis.

2 x t divided by n

step-by-step explanation: