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Chapter 5: Q16E (page 314)

Suppose a random sample of n = 25 measurements are selected from a population with mean 渭and standard deviation s. For each of the following values of 渭and role="math" localid="1651468116840" 蟽, give the values of 渭蠂炉 and 蟽蠂炉.

  1. 渭=100,蟽=3
  2. 渭=100,蟽=25
  3. 渭=20,蟽=40
  4. 渭=10,蟽=100

Short Answer

Expert verified

Random sampling is a sampling strategy in which every sample has an equal chance to be selected. A basic random sample is intended to reflect a group in an unbiased manner.

Step by step solution

01

 Step 1: (a) The data is given below

The calculation is given below:

碌=10蟽蠂=325=35=0.6

02

(b) The data is given below

The calculation is given below:

碌蠂-=100蟽蠂=255=5

03

(c) The data is given below

The calculation is given below:

碌蠂-=20蟽蠂=405=8

04

(d) The data is given below

The calculation is given below:

碌蠂-=10蟽蠂=1005=20

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