Using the unit normal table for Part A, find the proportion under the standard n
ID: 2947442 • Letter: U
Question
Using the unit normal table for Part A, find the proportion under the standard normal curve that lies to the right of the following values. (Round your answers to four decimal places.)
(a)
z = ?2.70
Answer:
Using the unit normal table for Part B, find the proportion under the standard normal curve that lies between the following values. (Round your answers to four decimal places.)
(b)
z = ?0.40 and z = ?0.10
Answer:
*The Unit normal table refers to the Z score table, t/f distribution table, etc. Each is easy to find online thus I did not include them.
Explanation / Answer
a) P(z>-2.70)
Use Excel function
1-NORMSDIST(-2.70)
= 0.9965
b) P(-0.40<z<-0.10)
Use Excel function
NORMSDIST(-0.40)-NORMSDIST(-0.10)
= 0.1156
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