Answer:
how am I supposed to help?
Step-by-step explanation:
Your question is a statement.
The probability for each die is 1/6
so you multiply 1/6 by 1/6
to get 1/36 so the probability of getting any given event is
1/36
A²=25 then a = + 5 & a =-5, so this ellipse intercepts the x axis at the points +5 & -5
Answer:
C - The type of salt and the amount of water are controls, and the amount of salt and the density are variables.
Step-by-step explanation:
Answer:
a) See step by Step explanation
b) z(s) = 48.88
c) We reject H₀. The sample is not representative of American Adult Population
Step-by-step explanation:
From sample
sample mean . x = 49.28
sample standard deviationn s = 17.21
sample size n₁ = 4857
Population mean according to Census data
μ = 37.2
a) Test Hypothesis
Null Hypothesis . H₀ . x = μ = 37.2
Alternative Hypothesis Hₐ . x ≠ μ
b) We have sample size (4857) we can use normal distribution
z (c) for α = 0.01 α/2 . = 0.005 is from z-table . z(c) = 2.575
To calculate z(s) = ( x - μ ) / s /√n
z(s) = 12.08 * √4857 / 17.21
z(s) = 12.08* 69.64 / 17.21
z(s) = 48.88
z(s) > z(c)
We should reject H₀. The sample is not representative of American Adult population
