



 
Hi Mark, You will need to convert the normal distribution you have to the standard normal distributable so that you can use the tables. The conversion from a normal random variable X with mean μ and standard deviation σ to the standard normal random variable is . For your distribution that's . For part a) you want the number on the Zaxis that cuts off a tail to the right with an area of 8% or 0.08. This number is often designated Z_{0.08}. Use your normal table to find the value of Z_{0.08}. Set this number equal to and solve for X. Parts b) and c) are similar. Harley  


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