Answer: i think its w=15h
Step-by-step explanation:
From the question, we know the population standard deviation, σ = 1.63, the sample standard deviation, s = 3.07, the sample mean,

and the sample size, n = 38.
The question illustrates a hypothesis chi-square test of variance.
The test statistics for a Chi-squared test of variance is given by
Answer:
3.33 hrs
Step-by-step explanation:
5000 liters divided by 25 liters per minute = 200 minutes