For a test of Ho: p = 0.5, the z test statistic equals -1.74. Find the p-value for Ha: p < 0.5.
Concepts and reason
Fundamentals
Formula for p-value is
Answer:
From the given information,
Null hypothesis:
Alternative hypothesis:
That is, the alternative hypothesis is one-sided hypothesis. Hence, the p-value is obtained for left tailed test.
Explanation:
The objective of the problem is finding the value of p for left-tail test by using standard normal table.
From the given information, the value of test statistic is –1.74.
Explanation:
The p-value is calculated by the probability of Z less than –1.74, which is obtained from standard normal table.