# Question

Determine the value of z* such that

a.z* and 2z* separate the middle 95% of all z values from the most extreme 5%

b.z* and 2z* separate the middle 90% of all z values from the most extreme 10%

c.z* and 2z* separate the middle 98% of all z values from the most extreme 2%

d.z* and 2z* separate the middle 92% of all z values from the most extreme 8%

a.z* and 2z* separate the middle 95% of all z values from the most extreme 5%

b.z* and 2z* separate the middle 90% of all z values from the most extreme 10%

c.z* and 2z* separate the middle 98% of all z values from the most extreme 2%

d.z* and 2z* separate the middle 92% of all z values from the most extreme 8%

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