The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard devia

Question

alexgriva [62]

2 years ago

11

The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard devia

tion of $4,000. What is the z-score of a company employee who makes an annual salary of $54,000?
–5
–3
4
5

Mathematics

1 answer:

lora16 [44] · Answer 1 · 2023-05-11T14:48:14+03:00

z-score of a company is 5.

What is z- test?

A z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard deviation of $4,000.

Now, using z- score

z= (x- $\mu$ )/ $\sigma$