Question

sample is chosen randomly from a population that can be described by a Normal model. Complete parts a and b below.

​a) What's the sampling distribution model for the sample​ mean? Describe​ shape, center, and spread. Choose the correct answer below. ​

b) If a larger sample is​ chosen, what's the effect on this sampling distribution​ model?

Answer 1

Answer :

(a). the sampling distribution model for the sample​ mean is :-

by central limit theorem, examining circulation of test mean will be regularly disseminated.

shape, center, and spread :-

shape will be chime molded , focus is the populace mean and spread will be standard blunder which is standard deviation of populace mean isolated by foundation of the example estimate

(b). the effect on this sampling distribution​ model :-

on the off chance that we picked bigger model , skewered will diminished in light of the fact that the standard blunder will diminished.