Asked Dec 6, 2019

Find the value of z such that 0.9108 of the area lies between −z and z.


Expert Answer

Step 1

Given, probability of the area lies between –z and z is 0.9108.

Step 2

Now, statistic (z) for area under the curve

Let’s draw a standard normal curve,


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Standard normal curve Area under the curve 0.9108 -Z

Step 3

Now, test statisti...


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it can be written as, P(-z<Z<z)=0.9108 P(Z<z)-P(Z<-z)=0.9108 from standard normal table,for0.9108 probability test statastic z-value is =1.35 : z-(-z)=1.35 2z=1.35 z=0.675


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