Question

For a hypothesis test of H0: p = 0.35 against the alternative Ha: p > 0.35, the z test statistic is found to be 2.45. What can be said about this finding?

Answer 1

Answer:

From this finding, it can be said that the sample proportion is greater than the population proportion because the test statistic (z = 2.45) is positive.

Step-by-step explanation:

H0: p = 0.35

Ha: p > 0.35

The test is a one-tailed test because the alternate hypothesis is expressed using greater than.

The test statistic (z) for a proportion is given as (p' - p) ÷ sqrt [p(1-p)/n]

p' is sample proportion

p is population proportion

n is sample size

For the test statistic z to be positive, p' must be greater than p.