The value of the test statistic is -1.25.
The value of the test statistic can be computed using the following formula:
z = (x - μ) / (σ / √n)
where:
x is the sample mean (49)
μ is the hypothesized mean (52)
σ is the population standard deviation (24)
n is the sample size (67)
Plugging in the values, we get:
z = (49 - 52) / (24 / √67) ≈ -1.25
Therefore, the value of the test statistic is -1.25.
Question
a test is made of h0: u= 52 versus H1: u> 52. a sample size n=67 is drawn and sample mean is 49. the population standard deviation is 24. compute the value of the test statistic.