Answer:
A normal distribution or z-test is used to construct a confidence interval.
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= $3120
Sample size, n = 40
Population standard deviation, σ = $677
The distribution of earnings of college is a normal distribution.
Conditions:
- Since we are given the population standard deviation and the the sample size is also greater than 30.
Conclusion:
Thus, we use a normal distribution or z-test to construct a confidence interval.
IF THOU KISS (NOT) me not it is the answer you’re welcome
Answer: Answer is D, if I'm not mistaking
Step-by-step explanation:
sorry if im wrong.
Answer:
what song?
Step-by-step explanation:
is that a song wrely
Answer:
£31
Step-by-step explanation:
25 = 800
x = 992
x = 992 x 25 / 800 = 31