Textbook ExpertVerified Tutor
1 Nov 2021
Given information
Here, the sum (ΣX) = 1,186;
mean (μx) = 3, standard deviation (σx) = 0.7,
and sample size (n) = 400,
Step-by-step explanation
Step 1.
The Central Limit Theorem for Sums z-score and standard deviation for sums;
z for the sample mean=
Unlock all Textbook Solutions
Already have an account? Log in