Answer:
A
Step-by-step explanation:
Using the pythagorean theorem,
we plug the numbers in;
9+36=c^2
45=c^2
sqr root of 45 is
next find the positive perfect sqr root of 45 which will be 9.
9 goes into 45 5 times so it will be
Sqr root of 9 is 3 so it will be
Answer:
2.304
Step-by-step explanation:
Given that x be a random variable that represents the pH of arterial plasma (i.e., acidity of the blood).
(Two tailed test at 5% level)
Mean difference =
b) Here we can use only t test since population std deviation is not known.
df = n-1 = 30
Test statistic t = mean diff/std error = 2.304
p value = 0.028