Given:
μ = $3120, population mean
σ = $677, population standard deviation.
The population is normally distributed.
n = 20, sample size.
At the 95% confidence level, the confidence interval is

1.96(σ/√n) = 1.96(677/√20) = 296.71
Th confidence interval for the mean is
($2823.29, $3416.71)
Answer: ($2823.29, $3416.71)
Answer:
Linear. y = x also equals y = 1x, and you can put a line on a graph using this equation, hence the name linear.
The answer is 2n^3-3n^2-7n+3
Answer:
4
Step-by-step explanation:
Step 1:
7x + 14 - 3x = 30
Step 2:
4x + 14 = 30
Step 3:
4x = 16
Answer:
x = 4
Hope This Helps :)