A personality test is administered to a large group of

Kaspaueru2

Kaspaueru2

Answered question

2021-12-18

A personality test is administered to a large group of subjects. Five scores are shown below, in original units and in standard units. Fill in the bla
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[796452721.80.81.4]

Answer & Explanation

Nadine Salcido

Nadine Salcido

Beginner2021-12-19Added 34 answers

The normal standard variable is z.
z=xμσ
When x=79,z=1.8i.e.
1.8=79μσμ+1.8σ=78
When x=64,z=0.8i.e.
0.8=64μσμ+0.8σ=64
Solving the two equations above results in
σ=14
Now, μ+1.8(14)=78μ=52.8
When x=52
z=5252.814=0.06
When z=1.4
1.4=x52.814

⇒=33.2
Answer: μ=52.8  and  σ=14

usaho4w

usaho4w

Beginner2021-12-20Added 39 answers

Use z-score formula to find the missing values.
z=xmeansd
sd= standard deviation
First you have to figure out the mean and standard deviation.
Lets

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