jmahoney9157 jmahoney9157
  • 20-10-2020
  • Mathematics
contestada

A population has mean and standard deviation . Find and for samples of size . Round your answers to one decimal place if needed.

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 20-10-2020

Answer:

μx = 17

σx = 2.2

Step-by-step explanation:

See attachment for full question.

Given:

μ = 17

σ = 22

[tex]n = 100\σ = 22[/tex]

Required

Determine (i) μx and  (ii) σx

Solving (i): μx

The mean of a sample means is calculated as thus:

μx = μ

Hence:

μx = 17

Solving (ii): σx

σx = σ/√n

So, we have:

σx = 22/√100

σx = 22/10

σx = 2.2

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