Do rise/run and u should have your answer
Answer:try the decimal and x then divide by 2
Step-by-step explanation:
Let
μ = population mean
σ = population std. deviation.
n = sample size.
At 95% confidence level, the confidence interval is
(μ - 1.96y, μ + 1.96y),
where y = σ/√n.
Therefore
μ - 1.96y = 6.5 (1)
μ + 1.96y = 12.5 (2)
Add (1 and (2) to obtain
2μ = 19
μ = 9.5
The calculated value of μ is within the interval (6.5, 12.5).
Answer:
The statement "There is a 95% probability that the true population mean is between 6.5 and 12.5" is True.
Answer:
4 months
Step-by-step explanation:
Set up an equation setting the prices of the 2 studios equal to each other:
Let x represent the number of months:
24.5x + 22 = 18.25x + 47
Solve for x:
24.5x + 22 = 18.25x + 47
6.25x + 22 = 47
6.25x = 25
x = 4
So, they will cost the same at 4 months.
