Answer:
t = -0.061
Step-by-step explanation:
We are given;
Population mean; μ = 5.9
Sample mean; x¯ = 5.6
Sample size; n = 24
standard deviation; σ = 1
Significance level = 0.02
Formula for the test statistic since sample size is less than 30 is;
t = (x¯ - μ)/(σ/√n)
t = (5.6 - 5.9)/(1/√24)
t = -0.3/(1/√24)
t = -0.061
Answer:
-50 dollars per month
Step-by-step explanation:
