Solved by verified expert:Use this information to answer the following questions:
Population:
µ = 36
σ = 4
Sample:
x ̅ (mean of the sample)=42
n (sample size)=16
1) What is the probability of a score being greater than 2.21 Z?
2) What is the probability of a score being less than 2.21 Z?
3) Find x for ± 2.21 Z.
4) Is the sample significantly different from the population? (Use the one sample z-test.)
Please show how you came to your answers. I was lost in this class a little – and then the professor gave us this problem, and I don’t know where to even start to get the answers.
py271_assignment_4.docx
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PY 271 online
Assignment #4
Use this information to answer the following questions:
Population:
µ (true mean of the pop)= 36
( = 4
Sample:
̅ ( ℎ ) = 42
( ) = 16
1)
2)
3)
4)
What is the probability of a score being greater than 2.21 Z?
What is the probability of a score being less than 2.21 Z?
Find x for ± 2.21 Z.
Is the sample significantly different from the population? (Use the one sample z-test.)
…
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