The test statistic of z=2.48 is obtained when testing the claim that p > 0.7.

(a) identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.
(b) find the p-value.
(c) using a significance level of alpha=.05, should we reject h0 or should we fail to reject h0?

a)  Right-tailed test

b) 0.006569

c) We reject .

Step-by-step explanation:

We are given the following information in the question:

We are testing the claim  that p > 0.7

Alpha, α = 0.05

a) We have to identify type of test.

Since we test for claim p > 0.7, it is a one-tailed(right) test.

b) The p-value can be calculated with the help of standard normal table.

C) Since the p-value is less than the significance level, we fail to accept the null hypothesis and reject the null hypothesis.

Thus, we reject .

step-by-step explanation:

b. astronomers