Answer:
a) Right-tailed test
b) 0.006569
c) We reject [tex]H_0[/tex].
Step-by-step explanation:
We are given the following information in the question:
[tex]z_{\text{statistic}} = 2.48[/tex]
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.
[tex]P(z>2.48) = 1 - P(z<2.48) = 0.006569[/tex]
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 [tex]H_0[/tex].
