Answer:
14
Step-by-step explanation:
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The measure of angle 1 is 75°. Hope you get it.
From the definition of logarithm, we know that:

In this case

and

so:
Answer: 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.