Margin of error: $130,confidence level: 95\%,\sigma =$591 what is the sample size?

UkusakazaL

UkusakazaL

Answered question

2021-08-02

margin of error: $130,confidence level: 95%,σ=$591 what is the sample size?

Answer & Explanation

Bergen

Bergen

Beginner2021-08-04Added 1 answers

Step 1
From the provided information,
Margin of error (E)=$130
Confidence level =95%
Population standard deviation (σ)=$591
Step 2
The z value at 95% confidence level from the standard normal table is 1.96.
The required sample size can be obtained as:
n=(zα2σE)2
=(1.96×591130)2
=79.3963
80
Thus, the required sample size is 80.

Do you have a similar question?

Recalculate according to your conditions!

New Questions in College Statistics

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?