Question

Testing: H 0 : μ = 52 H 1 : μ ≠ 52 Your sample consists of 45 subjects, with a mean of 53.8 and standard deviation of 17.3. Calculate the test statistic, rounded to 2 decimal places.

Answer 1

Answer)

Ho : u = 52

Ha : u not equal to 52

Sample mean = 53.8

S.d = 17.3

N = 45

Test statistics t = (sample mean - calimed mean)/(s.d/√n)

t = (53.8 - 52)/(17.3/√45) = 0.69796341494 ~ 0.7